1963-1979 C2-C3 Half Shaft Outboard Mount Bolt Kit and French Locks 3860543 - OEM Number(s) (3860543)
Secure your Corvette’s outboard half shaft flange to the trailing arm with confidence using our factory-style Mount Bolt and French Lock Kit. This hardware set provides both safety and authenticity, and is especially critical during trailing arm replacement or full rear suspension restoration. The 3860543 bolt and lock set fits all 1963–1979 Corvettes, covering both C2 and C3 applications that used outboard-style rear half shafts.
This complete kit includes Grade 8 mounting bolts and steel French locks—exactly what you need to fasten the outer half shaft flange to the trailing arm flange and prevent rotation under torque. Whether you're finishing a concours build or restoring your weekend driver, correct fasteners matter.
Features
• Includes (4) Steel French Locks
• Includes (8) Grade 8 Bolts
• Fits All 1963–1979 Corvettes With Outboard Half Shafts
• Replaces GM Part Number 3860543
• Secures Half Shaft Flange to Trailing Arm Flange
• Steel Construction for Factory-Correct Restoration
Because Details Matter
Hardware like this mounting bolt and French lock set isn’t just about torque specs—it’s about doing the job right. Each component in this kit was chosen to meet OEM expectations for fit, function, and finish. Don’t settle for mismatched or modern substitutes when you’re chasing period-correct perfection.
Also known under these part numbers: (For reference only)
- 3860543
- 619106
- 686420322320