1968-1982 C3 Hood Support Drip Rail Reinforcement Washer 3936391 - OEM Number(s) (3936391)
Ensure lasting structural integrity at your hood support mounting point with this stainless steel hood support drip rail reinforcement washer, a factory-style replacement for GM Part Number 3936391. Designed to prevent deformation or fatigue in the hood surround lip, this washer absorbs the clamping pressure created when the hood support is secured to the fender and hood structure.
This washer is essential for maintaining safe and proper hood operation on any C3—especially during repeated opening and closing cycles. Without it, the mounting lip can warp or crack over time, particularly on cars that have seen decades of service or multiple hood support swaps.
Features
• Fits all 1968–1982 C3 Corvettes
• Exact replacement for GM 3936391
• Installs in hood surround drip rail behind hood support bracket
• Distributes pressure to prevent metal fatigue or cracking
• Precision cut stainless steel for durability and corrosion resistance
• Ideal for restorations or reinforcement during hood support replacement
Dimensions and Weight
• GM Part Number: 3936391
• Application: 1968–1982
• Material: Stainless Steel
• Mounting Location: Drip rail at hood surround lip
Because Details Matter
This is one of those often-overlooked components that keeps your Corvette’s hood structure secure and functioning safely. Whether you're installing a new hood support or correcting a fatigued mounting point, this washer adds strength and confidence.
Under the Straw Hat – Restorer’s Insight
Many C3 restorers forget this reinforcement plate even exists—until they see cracked fiberglass or hood alignment issues. It's small, it's simple, and it's absolutely essential for long-term hood support reliability.
Assembly Manual Reference
• 1968: UPC 1, Sheet B10, Key No. 5 – Rear Lower Panel to Rear Upper Panel
• 1968: UPC 11–13, Sheet A7, Key No. 12 – Hood Hinge, Support & Catch
• 1969: UPC 11–13, Sheet A8, Key No. 12 – Hood Hinge, Support & Catch
• 1970: UPC 11–13, Sheet A8, Key No. 12 – Hood Hinge, Support & Catch
• 1970: UPC 11/13, Sheet A8, Key No. 16 – Hood Hinge, Support & Catch
• 1971: UPC 11, Sheet A9, Key No. 16 – Hood Hinge, Support & Catch
• 1972: UPC 11, Sheet A9, Key No. 2 – Hood, Hinge, Support & Catch
• 1974: UPC 11D, Sheet 3, Key No. 4 – Hood Hinge, Support & Catch
• 1974: UPC 11D, Sheet 5, Key No. 8 – Hood Hinge, Support & Bumpers
• 1975: UPC 11D, Sheet 6, Key No. 8 – Hood Hinge, Support & Bumpers
• 1976: UPC 11D, Sheet 6, Key No. 8 – Hood Hinge, Support & Bumpers
• 1977: UPC 11D, Sheet 7, Key No. 8 – Hood Hinge, Support & Bumpers
• 1978: UPC 11D, Sheet 7, Key No. 4 – Hood Hinge Special
• 1979: UPC 11D, Sheet 7, Key No. 4 – Hood Hinge, Support & Bumpers
• 1980: UPC 11D, Sheet 4, Key No. 4 – Hood Hinge & Support
• 1981: UPC 11D, Sheet 4, Key No. 4 – Hood Hinge & Support YAOAO ALL
• 1982: UPC 11D, Sheet 4, Key No. 4 – Hood Hinge & Support
Also known under these part numbers: (For reference only)
- 2029
- 3936391
- 463017
- 686420091059
- 8015190
- M-2710
- m2710