1963-1979 C2-C3 Half Shaft U-Joint Retainer U-Bolt Kit 2066840
Restore secure, vibration-free half shaft connections with this OE-style retainer kit.
Used across three generations of Corvette, our 1963–1979 U-Bolt Kit is the factory-correct solution for retaining U-joints at the rear differential yokes. It includes a pair of replacement U-bolts plus new hardware for a reliable clamp and clean restoration finish. Replaces GM part number 2066840.
Fits the Following Corvette Models:
• 1963–1967 C2 Coupe and Convertible
• 1968–1979 C3 Coupe and Convertible
Material and Finish
Hardened steel U-bolts with zinc plating. Threads are factory-correct 3/8"-24. Includes matching hex nuts and lock washers for proper torque retention.
Dimensions and Weight
• 2-3/4" Overall Height
• 1-5/16" Inside Span
• 1-5/8" Center-to-Center Leg Spacing
• 3/8"-24 Thread Size
Features and Benefits
• Replaces GM Part Number 2066840
• Fits All 1963–1979 Corvette Models
• OE-Style U-Bolt Retainers for Rear Side Yoke
• Includes 2 U-Bolts, Lock Washers, and Hex Nuts
• Correct Thread Pitch, Length, and Fitment Profile
Because Details Matter
Every detail—right down to the hardware—counts in a correct restoration. This U-bolt kit not only completes your driveline assembly but ensures your U-joints are clamped securely without fabrication, thread mismatch, or reused originals. It’s small hardware that makes a big difference when it matters.
Replacing Corvette U-Joints
Also known under these part numbers: (For reference only)