Overview
The ZF 0730.007.632 SHIM is a precision-engineered adjustment component designed specifically for the WG 65 series heavy-duty transmission. This OEM genuine shim sits between the TRANSMISSION HOUSING and the clutch pack assembly, where it controls axial clearance and ensures correct preload on rotating elements. By maintaining precise end-play tolerances, the SKU 0730.007.632 prevents internal component clash and optimizes gear engagement timing. This shim is critical for restoring factory-specified clearances during rebuilds or after replacing worn bearings.
Symptoms of Failure
- Delayed or harsh gear engagement: When the shim wears or compresses beyond specification, clutch packs may not fully engage, causing a noticeable lag or jolt when shifting from neutral to drive.
- Abnormal transmission whine or growl: Excessive axial play from a collapsed shim allows gear teeth to misalign, producing a low-frequency noise that intensifies under load.
- Oil seepage at housing joints: A worn shim can distort the HOUSING interface, breaking the seal and leading to fluid leaks around the transmission case.
- Intermittent gear slippage under torque: As clearances widen, the clutch stack loses clamping force, causing the transmission to momentarily lose power delivery during acceleration.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0730.007.632 |
| Material | Hardened spring steel (C67S) |
| Thickness | 0.50 mm (0.0197 in) |
| Outer Diameter | 62.0 mm |
| Inner Diameter | 48.5 mm |
| Weight | 8 grams |
| OEM Reference | ZF 0730.007.632 |
| Surface Finish | Ground, deburred edges |
Compatibility
This shim is engineered for the ZF WG 65 series transmission family, including models such as WG65, WG120, WG180, and WG200. It is also applicable to certain WG 65 derivatives used in off-highway vehicles and industrial powertrains. Always verify fitment with your specific transmission serial number, as the shim thickness is critical for proper preload. For assembly, this part works in conjunction with the HOUSING and is secured using a HEXAGON SCREW to maintain structural integrity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101066 | TRANSMISSION HOUSING | Main structural casing for gear and shaft assembly |
| 0636011118 | HEXAGON SCREW | Fastener for housing and cover attachment |
| 4616301307 | HOUSING | Intermediate housing for clutch and bearing support |
| 4616301309 | HOUSING | Rear housing component for output shaft |
| 0636011038 | HEXAGON SCREW | Bolt for securing clutch pack assembly |
| 0636016015 | HEXAGON SCREW | Flanged screw for oil pump mounting |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing positioning |
| 0634313118 | O-RING | Static seal between housing sections |
| 0636304019 | SCREW PLUG | Sealing plug for oil passage ports |
| 0634801152 | SEALING RING | Dynamic shaft seal for output flange |
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