GUIS-52 universal joint for ISUZU driveline service, with 29 mm bearing cups, 50 mm inside-circlip lock-up and approximately 76–77 mm overall span. Confirmed catalog references include 9-37300-065, 2-0383, 12976 and UJ314/UJ324. The photographed greaseable kit includes four special internal retaining rings.
GUIS-52 9-37300-065 Universal Joint 29×50(77) mm | ISUZU
Description
GUIS-52 universal joint is a greaseable inside-circlip cross-bearing assembly for selected ISUZU propeller shafts. The specification is commonly written as 29×50 or 29×50(77) mm: 29 mm is the bearing-cup outside diameter, 50 mm is the lock-up measured between the retaining-ring locations, and approximately 76–77 mm is the full cup-to-cup span.
The photographed GUIS-52 universal joint includes one cross with four installed bearing cups, four special C-shaped retaining rings and one grease fitting. The wide tab ends on the rings are an important identification detail. Final packing, surface finish and grease-fitting orientation can be confirmed before shipment.
Product Features
Designed for service replacement, the GUIS-52 universal joint combines an alloy-steel cross with hardened bearing cups and needle rollers. Its lubrication point supports scheduled greasing, while the internal-ring layout provides a compact lock-up dimension for matching yokes.
- Nominal 29 mm bearing-cup diameter.
- Nominal 50 mm inside-circlip lock-up.
- Approximately 76–77 mm overall span.
- Four special retaining rings supplied with the photographed kit.
- Greaseable construction for propeller-shaft maintenance.
Technical Specifications
Use the following data when checking a GUIS-52 universal joint against a removed cross, yoke or drawing. Dimensions are nominal, so production approval should be based on measurements and groove position.
| Primary part number | GUIS-52 / GUIS52 |
|---|---|
| Bearing cup diameter | 29 mm |
| Inside lock-up | 50 mm |
| Overall span | Approximately 76–77 mm |
| Retention | Four special internal circlips |
| Lubrication | Greaseable |
Cross-Reference Numbers
The GUIS-52 universal joint is cross-referenced in Japanese-vehicle catalogs as ISUZU 9-37300-065, KOYO 12976 and MATSUBA UJ314/UJ324. The aftermarket number 2-0383 is also used for the 29×50 inside-lock family. Use these numbers for searching, but confirm dimensions before treating any number as a guaranteed interchange.
ISUZU Applications
The GUIS-52 universal joint is promoted for selected ISUZU propeller-shaft applications. Some aftermarket listings associate this dimensional family with ISUZU Pickup and related Chevrolet LUV or Opel Campo platforms. Vehicle name and production year alone are not sufficient; shaft and yoke measurements remain the safest fitment method.
Compatibility Limitations
The GUIS-52 universal joint is different from 29×49 mm alternatives such as GUIS-70 and GUIS-71. A one-millimetre lock-up difference, another ring profile or a different cup shoulder can prevent correct installation even when the cup diameter is the same. Do not select the part only by visual appearance.
Fitment and Installation Check
Before ordering a GUIS-52 universal joint, measure the cup diameter, inside ring-to-ring lock-up and complete span. Compare the circlip tab shape, groove position, seal arrangement and grease-fitting clearance. During installation, clean the yoke bores, keep needle rollers upright, press each cup evenly, seat every ring completely and confirm smooth articulation without binding.
Ordering Information
For a quotation on the GUIS-52 universal joint, send the required quantity, original part number, vehicle or shaft model, measured 29×50(77) mm dimensions and clear photographs. MR Driveline can review drawings or samples and confirm production, inspection, packing and delivery details. See our Japanese car universal joint catalog for related sizes.
Frequently Asked Questions
How should I verify a GUIS-52 universal joint?
Check all three dimensions: 29 mm cup diameter, 50 mm inside lock-up and approximately 76–77 mm overall span. Then compare the four special retaining rings and the original 9-37300-065 reference.
Additional information
| Brand | MR Driveline |
|---|---|
| Bearing Cup Diameter | 29 mm |
| Inside Circlip Lock-up | 50 mm |
| Overall Span | Approximately 76–77 mm |
| Cross References | GUIS-52, 9-37300-065, 2-0383, 12976, UJ314, UJ324 |
