{"id":966,"date":"2026-06-01T06:57:48","date_gmt":"2026-06-01T06:57:48","guid":{"rendered":"https:\/\/automatictransmissionpart.com\/?post_type=product&p=966"},"modified":"2026-06-01T07:00:10","modified_gmt":"2026-06-01T07:00:10","slug":"ep-guis51-68-series-isuzu-guis-universal-joint","status":"publish","type":"product","link":"https:\/\/automatictransmissionpart.com\/vi\/san-pham\/ep-guis51-68-series-isuzu-guis-universal-joint\/","title":{"rendered":"Kh\u1edbp n\u1ed1i v\u1ea1n n\u0103ng GUIS d\u00f2ng EP-GUIS51-68 c\u1ee7a Isuzu"},"content":{"rendered":"
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EP-GUIS51-68 Series \u2014 ISUZU GUIS Universal Joint<\/h2>\n

The EP-GUIS51-68 Series is a comprehensive range of ISUZU GUIS Universal Joints engineered to deliver consistent torque transmission across misaligned driveline shafts in commercial trucks, utility vehicles, and heavy transport equipment built on ISUZU platforms. Each unit in this series is dimensionally matched to original ISUZU OEM specifications, supporting seamless ISUZU universal joint replacement<\/strong> without modification. With trunnion diameters spanning 20.5 mm to 56 mm and overall lengths from 56.6 mm to 173.9 mm, the series covers a broad spectrum of powertrain geometries found across light-duty pick-ups, medium-duty trucks, and industrial ISUZU chassis used extensively throughout Latin America, including Colombia.<\/p>\n

\u2714 OEM-Grade Precision<\/span>
\n\u2714 Full Series Coverage GUIS51\u201368<\/span>
\n\u2714 Colombia & Latam Ready<\/span>
\n\u2714 Direct Drop-In Fitment<\/span><\/div>\n<\/div>\n

<\/p>\n

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ISUZU GUIS Universal Joint Key Facts<\/strong><\/p>\n

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  • Series: GUIS51 \u00b7 GUIS52 \u00b7 GUIS55 \u00b7 GUIS56 \u00b7 GUIS57 \u00b7 GUIS58 \u00b7 GUIS59 \u00b7 GUIS60 \u00b7 GUIS61 \u00b7 GUIS62 \u00b7 GUIS63 \u00b7 GUIS64 \u00b7 GUIS65 \u00b7 GUIS66 \u00b7 GUIS67 \u00b7 GUIS68<\/li>\n
  • Application: ISUZU trucks & commercial vehicles<\/li>\n
  • Trunnion diameter range: 20.5 \u2013 56 mm<\/li>\n
  • Overall length range: 56.6 \u2013 173.9 mm<\/li>\n
  • Cross-reference: KOYO, MATSUBA, OEM original numbers<\/li>\n<\/ul>\n<\/div>\n
    \n

    ISUZU GUIS Universal Joint Quick Application Guide<\/strong><\/p>\n

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    • ISUZU N-series \/ NKR \/ NPR trucks<\/li>\n
    • ISUZU ELF utility & cargo vehicles<\/li>\n
    • ISUZU FRR \/ FSR medium-duty trucks<\/li>\n
    • ISUZU construction & agricultural machinery<\/li>\n
    • Steering column universal joint applications<\/li>\n<\/ul>\n<\/div>\n<\/div>\n

      1. Technical Specifications \u2014 EP-GUIS51-68 Series ISUZU GUIS Universal Joint<\/h2>\n

      The table below lists the complete dimensional and cross-reference data for every member of the ISUZU GUIS Universal Joint series, sourced directly from the product catalogue. Dimensions are given in millimetres (mm). D = trunnion journal diameter; O = outer diameter (where applicable); L = overall cross length.<\/p>\n

      \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      QU\u1ea2 SUNG<\/th>\nM\u00e3 s\u1ed1 linh ki\u1ec7n<\/th>\n\u0110\u01b0\u1eddng k\u00ednh (mm)<\/th>\nO (mm)<\/th>\nL (mm)<\/th>\nS\u1ed1 g\u1ed1c<\/th>\nKOYO<\/th>\nMATSUBA<\/th>\n<\/tr>\n<\/thead>\n
      M\u1ed8T<\/td>\nGUIS51<\/td>\n23.82<\/td>\n\u2014<\/td>\n61.3<\/td>\n9-37300-017<\/td>\n12461<\/td>\nUJ313<\/td>\n<\/tr>\n
      B<\/td>\nGUIS52<\/td>\n29<\/td>\n50<\/td>\n\u2014<\/td>\n9-37300-065<\/td>\n12976<\/td>\nUJ314(324)<\/td>\n<\/tr>\n
      T\u00d4I<\/td>\nGUIS55<\/td>\n42<\/td>\n\u2014<\/td>\n125<\/td>\n9-37300-150<\/td>\n142129A<\/td>\nUJ320<\/td>\n<\/tr>\n
      M\u1ed8T<\/td>\nGUIS56<\/td>\n23.82<\/td>\n\u2014<\/td>\n61.3<\/td>\n9-37300-609<\/td>\n12461<\/td>\nUJ323<\/td>\n<\/tr>\n
      T\u00d4I<\/td>\nGUIS57<\/td>\n48<\/td>\n\u2014<\/td>\n145<\/td>\n9-37300-163<\/td>\n148149<\/td>\nUJ321<\/td>\n<\/tr>\n
      E<\/td>\nGUIS58<\/td>\n36<\/td>\n\u2014<\/td>\n97<\/td>\n9-37300-112<\/td>\n136101A<\/td>\nUJ312<\/td>\n<\/tr>\n
      M\u1ed8T<\/td>\nGUIS59<\/td>\n20.5<\/td>\n\u2014<\/td>\n56.6<\/td>\n44135-060<\/td>\n\u2014<\/td>\nUJ315<\/td>\n<\/tr>\n
      G<\/td>\nGUIS60<\/td>\n49.2<\/td>\n\u2014<\/td>\n148.38<\/td>\n9-37300-139-0<\/td>\n070004AR-1<\/td>\nUJ339<\/td>\n<\/tr>\n
      M\u1ed8T<\/td>\nGUIS61<\/td>\n23.82<\/td>\n\u2014<\/td>\n61.3<\/td>\n9-37300-031<\/td>\n12491<\/td>\nUJ313<\/td>\n<\/tr>\n
      M\u1ed8T<\/td>\nGUIS62<\/td>\n35<\/td>\n\u2014<\/td>\n103.92<\/td>\n1-37300-0130<\/td>\n1351041<\/td>\n\u2014<\/td>\n<\/tr>\n
      M\u1ed8T<\/td>\nGUIS63<\/td>\n22.06<\/td>\n\u2014<\/td>\n62.5<\/td>\n94207232-1<\/td>\n\u2014<\/td>\n\u2014<\/td>\n<\/tr>\n
      M\u1ed8T<\/td>\nGUIS64<\/td>\n40<\/td>\n\u2014<\/td>\n114.9<\/td>\n1-37300-047-0<\/td>\n\u2014<\/td>\n\u2014<\/td>\n<\/tr>\n
      T\u00d4I<\/td>\nGUIS65<\/td>\n45.98<\/td>\n\u2014<\/td>\n136<\/td>\n1-37300-004-0<\/td>\n146142WS<\/td>\nUJ340<\/td>\n<\/tr>\n
      M\u1ed8T<\/td>\nGUIS66<\/td>\n33<\/td>\n\u2014<\/td>\n93<\/td>\n5-37300-032-0<\/td>\n133931W<\/td>\nUJ325<\/td>\n<\/tr>\n
      G<\/td>\nGUIS67<\/td>\n56<\/td>\n\u2014<\/td>\n173.9<\/td>\n1-37300-049-0<\/td>\n\u2014<\/td>\n\u2014<\/td>\n<\/tr>\n
      T\u00d4I<\/td>\nGUIS68<\/td>\n50<\/td>\n\u2014<\/td>\n155<\/td>\n1-37300-082-0<\/td>\n\u2014<\/td>\n\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

      D = Trunnion journal diameter (mm) \u00b7 O = Outer flange diameter (mm) \u00b7 L = Overall cross length (mm). FIG letter denotes cross-section type as illustrated in the product catalogue.<\/em><\/p>\n

      \"automatictransmissionpart-products-EP-GUIS51-68<\/p>\n

      \n

      2. What Is a Universal Joint \u2014 and Why Does It Matter in Your ISUZU?<\/h2>\n

      M\u1ed8T kh\u1edbp v\u1ea1n n\u0103ng<\/strong> \u2014 often called a U-joint or Cardan joint \u2014 is a flexible mechanical coupling used to transmit rotary motion between two shafts that intersect at an angle or whose alignment shifts during operation. In any rear-wheel-drive or four-wheel-drive drivetrain, the propeller shaft must accommodate vertical suspension movement while continuing to deliver engine torque to the differential or axle. Without a properly functioning universal joint in a car or truck<\/strong>, that angular discrepancy would generate intense vibration, accelerate bearing wear, and ultimately snap the driveshaft entirely.<\/p>\n

      For ISUZU vehicle owners and fleet managers in Colombia and throughout South America, understanding what a universal joint does is the first step toward proactive maintenance. ISUZU trucks \u2014 whether operating in the highlands of Bogot\u00e1, the coastal lowlands, or the demanding road conditions of the Colombian interior \u2014 rely on the driveline U-joint to absorb misalignment between the transmission output and the rear axle pinion. The ISUZU GUIS Universal Joint<\/strong> series is engineered specifically around the tolerances and load cycles that characterize ISUZU commercial drivetrains, making it the most reliable choice for both preventive replacement and emergency repair.<\/p>\n

      <\/div>\n<\/div>\n

      <\/p>\n

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      3. ISUZU GUIS Universal Joint Working Principle<\/h2>\n

      C\u00e1i Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a kh\u1edbp v\u1ea1n n\u0103ng<\/strong> is rooted in the spider-and-yoke design developed by Robert Hooke in the 17th century, commonly referred to as the Hooke joint. At the heart of the assembly sits a cross-shaped component called the trunnion or spider. Four precision-ground trunnion arms extend radially, each fitting into a needle-roller or plain-round bearing cup housed within a yoke. The two yokes \u2014 one connected to the driving shaft, the other to the driven shaft \u2014 are positioned 90\u00b0 apart.<\/p>\n

      When the input shaft rotates, torque is transmitted through the spider to the output yoke. Because the yokes are free to pivot on perpendicular axes, the assembly can accommodate angular misalignment typically up to 15\u00b0\u201325\u00b0 depending on design. In ISUZU truck drivetrains, double-cardan or tandem U-joint arrangements may further extend the working angle while canceling the inherent velocity variation (second-order vibration) that a single Hooke joint produces at larger angles. The EP-GUIS51-68 series uses a U-joint with 4 plain round bearings<\/strong> configuration for the majority of members \u2014 a robust, time-proven layout optimized for commercial truck duty cycles involving heavy loads, frequent starts, and mixed-surface road conditions typical of Colombian logistics and construction environments.<\/p>\n<\/div>\n

      <\/p>\n

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      4. Five Key Advantages of the EP-GUIS51-68 Series<\/h2>\n
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      \u2460 OEM-Grade Dimensional Accuracy<\/strong><\/p>\n

      Every trunnion diameter and overall length within the GUIS series is manufactured to match the original ISUZU part specifications. This precision eliminates clearance issues in the yoke seats, preventing premature wear and ensuring the bearing cups seat squarely without shimming or reworking the flange. Direct-fit replacement reduces workshop downtime and lowers total labor cost \u2014 a critical factor for fleet operators managing ISUZU NKR and ELF vehicles across Colombian transport corridors.<\/p>\n<\/div>\n

      \n

      \u2461 High-Alloy Steel Construction<\/strong><\/p>\n

      The spider cross and bearing cups are forged from high-grade alloy steel \u2014 typically equivalent to 20CrMnTi or 42CrMo \u2014 followed by case hardening and precision grinding. This heat-treatment process produces a hard, wear-resistant surface layer while retaining a tough, ductile core that absorbs shock loading. The result is a U-joint capable of handling the torsional peaks that occur during loaded vehicle starts on unpaved Colombian roads without cracking or spalling.<\/p>\n<\/div>\n

      \n

      \u2462 Extended Lubrication Intervals<\/strong><\/p>\n

      Each bearing cup incorporates a precision grease nipple (zerk fitting) port and a labyrinth-style dust seal. This sealing architecture retains lithium-complex or moly-fortified grease for extended service intervals \u2014 typically 30,000\u201350,000 km depending on operating conditions \u2014 while blocking road grime, water ingress, and fine silica dust that are particularly aggressive in arid or construction-site environments found across Antioquia and the Caribbean coast region of Colombia.<\/p>\n<\/div>\n

      \n

      \u2463 Full Series Coverage \u2014 GUIS51 to GUIS68<\/strong><\/p>\n

      Rather than stocking a single mid-range joint and hoping for tolerance stack-up, the EP-GUIS51-68 series ISUZU GUIS Universal Joint provides a dedicated part number for each distinct ISUZU application in the catalogue \u2014 from the compact GUIS51<\/strong> (D=23.82 mm, L=61.3 mm) used in lighter steering and transfer applications, up to the heavy-duty GUIS67<\/strong> (D=56 mm, L=173.9 mm) suited to the larger ISUZU truck drivelines. This comprehensive coverage means distributors in Colombia can satisfy demands for isuzu guis universal joint replacement across multiple model years from a single supplier.<\/p>\n<\/div>\n

      \n

      \u2464 Verified Cross-Reference Compatibility<\/strong><\/p>\n

      Each part in the series carries verified cross-references to KOYO, MATSUBA, and original ISUZU OEM numbers (e.g., 9-37300-017, 9-37300-065, 1-37300-004-0). This cross-reference database \u2014 built and validated against factory parts lists \u2014 allows procurement teams, mechanics, and online parts traders in Colombia and across Latin America to confirm correct fitment before ordering, reducing costly returns and incorrect installations. Compatibility with steering universal joint and steering column universal joint configurations is confirmed where applicable.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

      \"automatictransmissionpart-products-EP-GUIS51-68<\/p>\n

      \n

      5. Materials & Metallurgical Specifications of ISUZU GUIS Universal Joint<\/h2>\n

      Reliable performance in demanding commercial drivetrain applications begins at the material selection stage. The ISUZU GUIS Universal Joint series is built around a carefully specified metallurgical hierarchy, each layer chosen to address the specific failure modes observed in truck universal joints operating under mixed on-road and off-road conditions.<\/p>\n

      C\u00e1i trunnion spider body<\/strong> is forged from medium-carbon alloy steel conforming to specifications equivalent to 20CrMnTi or 20MnCr5. After rough machining, the component undergoes carburizing and case hardening<\/strong> to achieve a surface hardness in the range of 58\u201362 HRC, with a case depth of approximately 0.8\u20131.2 mm. The hardened case resists needle-roller contact fatigue and abrasive scoring, while the softer core (typically 30\u201340 HRC) maintains toughness against impact loading during rough-road operation. Surface roughness of the trunnion journals is ground to Ra \u2264 0.4 \u00b5m, ensuring minimal bearing-cup wear and consistent grease film maintenance throughout the service life.<\/p>\n

      C\u00e1i bearing cups<\/strong> are precision-turned from case-hardening steel and ground to meet tight bore diameter tolerances of \u00b10.005 mm, providing accurate press-fit retention in the yoke bore without risk of spinning or loosening under torque reversal. Integral lip seals or labyrinth seals<\/strong> \u2014 depending on the specific GUIS model \u2014 use nitrile rubber (NBR) compounds rated for continuous service between \u221240\u00b0C and +120\u00b0C, suitable for the full range of climatic conditions encountered across Colombia’s diverse geography, from cold Andean nights above 2,500 m to humid lowland heat near the Pacific and Caribbean coasts.<\/p>\n<\/div>\n

      \"automatictransmissionpart-products-EP-GUIS51-68<\/p>\n

      \n

      6. ISUZU GUIS Universal Joint’s Application Scenarios<\/h2>\n

      The ISUZU GUIS Universal Joint series covers a wide range of powertrain and steering applications. Below are the primary use cases where these joints deliver the most value.<\/p>\n

      \n
      \n

      \u00a0ISUZU NKR \/ NPR Light-to-Medium Truck Drivelines<\/strong><\/p>\n

      In NKR and NPR truck drivelines \u2014 among the most common urban delivery and cargo vehicles in Colombia’s cities \u2014 the propeller shaft U-joint must handle repeated load cycles during city stop-and-go driving. Models such as GUIS51<\/strong> V\u00e0 GUIS56<\/strong> (D=23.82 mm, L=61.3 mm) are direct fitments for the front and rear propeller shaft sections of these platforms, providing smooth torque delivery even when the driveshaft angle shifts under loaded suspension deflection on uneven urban roads.<\/p>\n<\/div>\n

      \n

      Construction & Infrastructure Equipment<\/strong><\/p>\n

      ISUZU-powered construction vehicles \u2014 including dump trucks, mixer trucks, and platform vehicles used on Colombian infrastructure projects \u2014 operate under severe drivetrain stress. The larger members of the series, particularly GUIS67<\/strong> (D=56 mm, L=173.9 mm) and GUIS68<\/strong> (D=50 mm, L=155 mm), are designed to handle the elevated peak torques generated during loaded climbs, abrupt gear engagement, and power take-off operations common at construction sites along the country’s expanding road network.<\/p>\n<\/div>\n

      \n

      \u00a0Agricultural & Rural Transport<\/strong><\/p>\n

      In agricultural regions such as the coffee-growing zones of Huila and Nari\u00f1o, or banana and flower export areas in Antioquia and the Urab\u00e1 region, ISUZU ELF and FSR trucks serve as the primary freight movers. Rural track roads impose severe lateral and vertical loading on the driveline. GUIS series joints with their robust case-hardened construction and sealed bearing assemblies withstand the mud, water, and grit exposure that would rapidly degrade lower-grade universal joints after only a few thousand kilometres.<\/p>\n<\/div>\n

      \n

      \u00a0Steering Column & Intermediate Shaft Applications<\/strong><\/p>\n

      Certain smaller-diameter members within the GUIS range \u2014 including GUIS59<\/strong> (D=20.5 mm, L=56.6 mm) and GUIS63<\/strong> (D=22.06 mm, L=62.5 mm) \u2014 function as steering universal joints<\/strong> ho\u1eb7c kh\u1edbp n\u1ed1i v\u1ea1n n\u0103ng c\u1ee7a tr\u1ee5c l\u00e1i<\/strong> components in the ISUZU steering system. These joints transmit driver steering input from the upper steering column through the intermediate shaft to the steering gear or rack, accommodating the angular offset between the column and the gear housing. Worn steering U-joints are a common cause of play and vibration felt through the wheel on older ISUZU vehicles.<\/p>\n<\/div>\n

      \n

      \u00a0Inter-Axle & Transfer Case Connections<\/strong><\/p>\n

      On heavier ISUZU FRR and FVM platforms equipped with tandem rear axles or transfer boxes, intermediate shafts connecting the primary differential to the secondary axle unit require robust U-joints capable of continuous duty at moderate angles. The mid-range GUIS series members \u2014 such as GUIS55<\/strong> (D=42 mm, L=125 mm) and GUIS60<\/strong> (D=49.2 mm, L=148.38 mm) \u2014 fill this role, offering sufficient journal area to distribute bearing loads across the needle-roller or plain bearing interface without exceeding material fatigue limits during sustained highway operation.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

      <\/p>\n

      \n

      7. Tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh v\u00e0 ti\u00eau chu\u1ea9n ng\u00e0nh<\/h2>\n

      Universal joints used in commercial vehicles are subject to both general mechanical safety standards and sector-specific vehicle regulations that vary by country. Understanding these requirements is essential for fleet operators, importers, and workshop technicians ensuring legal compliance and vehicle roadworthiness.<\/p>\n

      Colombia (INVIAS \/ Ministerio de Transporte):<\/strong> In Colombia, vehicle maintenance requirements \u2014 including drivetrain component integrity \u2014 fall under the framework established by the Ministerio de Transporte and technical inspection bodies. Resolution 3168 of 2002 and subsequent updates govern the Technical Mechanical Inspection (Revisi\u00f3n T\u00e9cnico-Mec\u00e1nica) for motor vehicles. Driveline components, including U-joints, are inspected for excessive play, abnormal noise, and leakage. A worn or failed universal joint will result in a failed inspection. Using OEM-specification parts such as the GUIS series ensures these inspection criteria are met.<\/p>\n

      ISO 8590 \/ DIN 808:<\/strong> The design geometry and dimensional tolerances for universal joints are governed internationally by ISO 8590 (universal joints \u2014 Part 1) and the DIN 808 standard (Kardangelenke \u2014 cardan joints). The GUIS series dimensional parameters are consistent with these standards, enabling interoperability with SAE and ISO-standard yokes used in aftermarket and fleet applications.<\/p>\n

      SAE J901 & ANSI\/ASME Standards:<\/strong> For applications where ISUZU trucks are used in North American-influenced industrial environments or where driveline assemblies are sourced from the US parts market, SAE J901 provides the reference geometry for universal joints. The GUIS series cross-references to SPICER and GKN joint families confirm dimensional alignment with these benchmarks.<\/p>\n

      European Union (ECE-R79 \/ Directive 2003\/37\/EC):<\/strong> For ISUZU vehicles registered or exported to EU member states, steering system regulations under ECE Regulation No. 79 require that the steering column and its associated joints \u2014 including the steering universal joint \u2014 meet specific play and failure-mode requirements. Components must not exhibit excessive backlash that could compromise steering precision. The GUIS steering U-joints are manufactured to tolerances consistent with these requirements.<\/p>\n

      Brazil (CONTRAN \/ DENATRAN ABNT standards):<\/strong> In Brazil \u2014 a major ISUZU market neighboring Colombia \u2014 ABNT NBR 14400 and related CONTRAN resolutions govern periodic technical inspection (vistoria veicular). Drivetrain integrity, including universal joint condition, is assessed during these inspections. Importers and distributors operating in the broader Andean and Mercosur trade area should ensure spare parts comply with the standards applicable in each destination country.<\/p>\n<\/div>\n

      <\/p>\n

      \n

      8. V\u1ec1 ch\u00fang t\u00f4i<\/h2>\n

      We are a specialist manufacturer and global supplier of automotive transmission components, with a core focus on universal joints, wheel hubs, axles, and related drivetrain parts for Japanese, Korean, and European commercial vehicle platforms. Our production facility operates to ISO 9001-certified quality management processes, combining advanced CNC machining centers, automated heat-treatment lines, and comprehensive dimensional inspection equipment including coordinate measuring machines (CMM), surface roughness testers, and microhardness testing instruments.<\/p>\n

      With decades of accumulated experience in ISUZU OEM cross-reference development, our engineering team maintains an active parts compatibility database updated against the latest ISUZU parts catalogues.<\/p>\n<\/div>\n

      <\/p>\n

      \n

      X\u01b0\u1edfng<\/h3>\n
      \n
      \"Workshop
      \n\"Thi\u1ebft
      \n\"Trung
      \n\"Factory<\/div>\n<\/div>\n<\/div>\n

      <\/p>\n

      \n

      9. S\u1ea3n ph\u1ea9m li\u00ean quan \u2014 Gi\u1ea3i ph\u00e1p h\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng ho\u00e0n ch\u1ec9nh<\/h2>\n

      The ISUZU GUIS Universal Joint works as part of a broader drivetrain assembly. To maximize system reliability and simplify procurement, we offer the full range of compatible drivetrain components from a single source.<\/p>\n

      \n
      \"Wheel
      \nB\u1ed9 tr\u1ee5c b\u00e1nh xe<\/strong><\/p>\n

      A worn or poorly matched wheel hub bearing creates axial play that places secondary stress on the adjacent universal joint in the driveline. Our Wheel Hub products are matched to ISUZU axle specifications, ensuring the driveline assembly functions as an integrated system. Sourcing the hub unit alongside the U-joint from one supplier eliminates compatibility guesswork and simplifies warranty management for fleet workshops in Colombia and across South America.<\/p>\n<\/div>\n

      \"ISUZU
      \nTr\u1ee5c b\u00e1nh xe<\/strong><\/p>\n

      Axle shafts and universal joints are interdependent components. A cracked or twisted axle shaft will transmit torsional shock loads directly to the U-joint, accelerating its wear cycle. Our axle shaft range includes ISUZU NKR, NPR, and FRR rear axle shafts, allowing customers to address root-cause drivetrain failures comprehensively rather than replacing only the visible failed part. One-stop supply of universal joints, axles, and wheel hubs reduces total acquisition cost and improves workshop turnaround time for fleet operators managing large ISUZU truck fleets across Colombian provinces.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

      <\/p>\n

      \n

      C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n
      \n
      \nQ1. What is the difference between a steering universal joint and a driveshaft universal joint on an ISUZU vehicle? \u25bc<\/summary>\n
      A steering universal joint \u2014 also known as a steering column universal joint or universal steering joint \u2014 operates at very low rotational speeds and primarily serves to transmit the angular input from the driver’s steering wheel to the steering gear or rack, accommodating the angular offset between the two shafts. These joints handle minimal torque and are generally smaller in diameter (GUIS59 at 20.5 mm, GUIS63 at 22.06 mm). A driveshaft universal joint, by contrast, must transmit the full engine torque at driveshaft rotational speeds (typically 800\u20133,500 RPM under load), making the demands on material strength, bearing capacity, and dynamic balance significantly higher. Both types are present in the ISUZU GUIS series.<\/div>\n<\/details>\n<\/div>\n
      \n
      \nQ2. Which GUIS part number is the right ISUZU universal joint replacement for an NKR truck? \u25bc<\/summary>\n
      The correct part depends on the specific propeller shaft section and model year of your NKR. In general, GUIS51 (OEM 9-37300-017, D=23.82 mm, L=61.3 mm) covers many light-duty NKR front shaft applications, while GUIS55 (OEM 9-37300-150, D=42 mm, L=125 mm) is used in mid-section or second-shaft positions on heavier configurations. Always cross-reference the OEM original number printed on the old joint or listed in your ISUZU workshop manual before ordering. Our cross-reference database is available to help distributors and workshops in Colombia confirm correct fitment without delay.<\/div>\n<\/details>\n<\/div>\n
      \n
      \nQ3. How do I know when it is time to replace the universal joint on my ISUZU commercial truck? \u25bc<\/summary>\n
      Several warning signs indicate a failing U-joint on a universal joint truck application. The most common symptom is a clunking or metallic knock felt when engaging a gear or transitioning from acceleration to deceleration \u2014 this indicates excessive rotational play in the trunnion-to-bearing-cup interface. A high-pitched squeak or squeal at low speeds often signals dried-out or contaminated bearing cups from a failed seal. Vibration that intensifies at specific road speeds points to an out-of-balance or bent propeller shaft, sometimes caused by a partially seized U-joint. In Colombia’s Technical Mechanical Inspection (Revisi\u00f3n T\u00e9cnico-Mec\u00e1nica), a U-joint with more than 2\u00b0 of angular play will typically result in a failed inspection.<\/div>\n<\/details>\n<\/div>\n
      \n
      \nQ4. Where can I find a reliable ISUZU GUIS universal joint supplier for fleets operating in Colombia? \u25bc<\/summary>\n
      Fleet managers and parts distributors in Colombia looking for a dependable isuzu guis universal joint replacement source should prioritize suppliers who maintain verifiable OEM cross-reference data (original ISUZU part numbers), documented material certifications, and consistent dimensional inspection records. We supply directly to Colombian importers and distributors with full part documentation, enabling buyers to verify conformance before committing to bulk orders. Shipping options include sea freight for full-container orders and air freight for urgent single-SKU requirements \u2014 ensuring that workshops in Bogot\u00e1, Barranquilla, Bucaramanga, and Cartagena can access the right joint without extended lead times.<\/div>\n<\/details>\n<\/div>\n
      \n
      \nQ5. What are the different universal joint types available in the EP-GUIS series ISUZU GUIS Universal Joint, and which fits my application? \u25bc<\/summary>\n
      The EP-ISUZU GUIS Universal Joint GUIS51-68 series\u00a0 encompasses several universal joint types defined by their figure code (FIG A, B, E, G, I). FIG A is the standard cross-and-bearing-cup design (yoke-and-flange, single-diameter trunnion) \u2014 the most common universal joint in car and truck driveshafts. FIG B typically incorporates a ring-groove retaining feature on the bearing cup. FIG E features a yoke with a different flange geometry suited to steering or intermediate-shaft applications. FIG G denotes a wing-bearing or plate-yoke variant for higher-load torque paths. FIG I is an extended-trunnion or deep-cup variant for applications requiring additional needle-roller engagement length. Matching the correct FIG type to your yoke design is as important as matching the trunnion diameter and length.<\/div>\n<\/details>\n<\/div>\n
      <\/div>\n<\/div>\n<\/div>\n

      Bi\u00ean t\u1eadp vi\u00ean: PXY<\/p>","protected":false},"excerpt":{"rendered":"

      \n
      EP-ISUZU GUIS Universal Joints are precision-engineered OEM replacements for Isuzu drivelines. Covering sizes from D=20.5mm to 56mm, they feature exact-fit dimensions and direct cross-reference with Isuzu original part numbers, plus KOYO and MATSUBA equivalents (UJ313-UJ340).<\/div>\n<\/div>\n
      \n
      Built for heavy-duty commercial use, they deliver reliable torque transfer and long service life under harsh conditions. These high-quality universal joints ensure smooth operation and simplified maintenance, making them ideal for Isuzu truck and vehicle repair.<\/div>\n<\/div>","protected":false},"featured_media":967,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[63],"product_tag":[],"class_list":["post-966","product","type-product","status-publish","has-post-thumbnail","product_cat-isuzu-series-universal-joint","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/automatictransmissionpart.com\/vi\/wp-json\/wp\/v2\/product\/966","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/automatictransmissionpart.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/automatictransmissionpart.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/automatictransmissionpart.com\/vi\/wp-json\/wp\/v2\/media\/967"}],"wp:attachment":[{"href":"https:\/\/automatictransmissionpart.com\/vi\/wp-json\/wp\/v2\/media?parent=966"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/automatictransmissionpart.com\/vi\/wp-json\/wp\/v2\/product_brand?post=966"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/automatictransmissionpart.com\/vi\/wp-json\/wp\/v2\/product_cat?post=966"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/automatictransmissionpart.com\/vi\/wp-json\/wp\/v2\/product_tag?post=966"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}