ZF 0730.007.003 SHIM | OEM Genuine Part

Overview

The ZF 0730.007.003 SHIM is a precision-engineered OEM genuine part designed to establish critical axial clearances within heavy-duty ZF transmissions. This shim sits between the differential housing and the axle bevel gear assembly, compensating for manufacturing tolerances to ensure optimal gear mesh and load distribution. The SKU 0730.007.003 is essential for maintaining the exact preload specifications required for long-term drivetrain reliability in construction machinery. When paired with a 5838109012: DIFFERENTIAL, this shim prevents excessive end-play that can lead to premature component wear.

Symptoms of Failure

• Excessive differential backlash — A worn or incorrectly sized shim causes noticeable play in the driveline, resulting in a clunking noise during direction changes.
• Oil seepage at axle housing — When the shim compresses or degrades, the differential housing shifts, breaking the seal and causing slow oil leaks around the mounting flange.
• Gear whine under load — Improper shim thickness alters the contact pattern between the ring gear and pinion, producing a high-pitched whine that intensifies during acceleration.
• Vibration in low-gear operation — Loss of shim integrity allows the differential assembly to oscillate, transmitting vibration through the transmission case during heavy pulling operations.

Technical Specifications

Compatibility

This shim is primarily used in ZF WG180, WG200, and WG310 series transmissions found in wheel loaders, graders, and heavy forklifts. It also fits select ZF 4WG-200 and 6WG-310 torque converter transmissions. For proper installation, always verify the shim thickness against the existing stack when replacing a 2093209023: DIFFERENTIAL or servicing the 5838300626: DIFFERENTIAL HOUSING. The shim works in conjunction with the 0750117075: TAPER ROLLER BEARING to set correct bearing preload.

Related Components

Frequently Asked Questions

Q: Can I reuse the 0730.007.003 shim during a differential rebuild?
A: No. ZF recommends replacing all shims with new OEM parts during any differential or housing service, as used shims may have work-hardened or developed microscopic stress fractures that alter clearance specifications.

Q: How do I measure if this shim is the correct thickness for my application?
A: Use a micrometer to measure the existing shim stack and compare it to the factory preload specification for your specific ZF transmission model. The 0730.007.003 is a 0.30 mm shim; stacking multiple shims may be necessary to achieve the required total clearance.

Q: Will a thicker shim fix differential noise?
A: Not always. While a shim corrects axial play, gear noise often results from improper tooth contact. Always inspect the ring and pinion pattern after shim replacement. If noise persists, check the 5838300721: AXLE BEVEL GEAR for wear.