Corvette Flywheel Shim - .025 Inch: 1963-1982

Corvette Flywheel Shim .025 Inch: 19631982 is a precisionengineered spacer designed to dial in the critical flywheeltocrank spacing on classic Corvettes. This exactthickness shim helps restore proper alignment after flywheel resurfacing, clutch replacement, or engine service, ensuring smooth operation and reliable starting in your 1963–1982 Corvette.

What it is and why you need it

In vintage Corvette builds, even a small change in component tolerances can shift the timing between the flywheel, ring gear, and starter. The.025 inch flywheel shim gives you a precise, OEMaligned spacer that reestablishes correct clearance, minimizes clutch chatter, and prevents starter gear misengagement. It’s a simple, effective way to protect drivetrain components and maintain consistent clutch performance.

Key benefits

• Exact thickness of .025 inch to restore proper spacing between the flywheel and crankshaft.
• Specifically targeted for classic Corvette models from 1963–1982, making it a straightforward restoration part.
• Improves starter engagement and reduces wear on the ring gear by ensuring the starter gear aligns correctly with the flywheel.
• Supports smoother, more predictable clutch engagement and overall drivetrain reliability during shifting and acceleration.
• Compact, dropin shim designed to work with standard factory mounting configurations without ad hoc modifications.

Who this is for

• Owners restoring or maintaining classic Corvettes from 1963–1982 who are reassembling a flywheel or performing a clutch service.
• Builders and enthusiasts addressing spacing changes after flywheel resurfacing or engine work.
• Anyone seeking to prevent starter misalignment and prolong ring gear life in vintage Corvette applications.

Compatibility and use cases

Fits Corvette flywheel setups that require a precise spacer to achieve correct axial alignment and clearance. Ideal for use during clutch swaps, flywheel resurfacing, engine rebuilds, or any project where cranktoflywheel spacing must be restored to OEM specifications.

Installation tips

• Verify the.025 inch thickness with a calibrated measuring tool before installation to ensure exact clearance.
• Clean all mating surfaces thoroughly and inspect for wear or damage prior to reassembly.
• Follow the vehicle’s service manual for proper torque values and fastening sequences; replace any related hardware if needed.
• As part of a broader clutch or flywheel service, consider inspecting the starter, ring gear, and related components for wear to maximize longevity.