This is believed to be an OEM differential cover for GM 8.5" 10-bolt rear ends, commonly used on 1984–1987 Turbo Buick platforms.
💎Diamond – hard to find OEM product
🔧 Specifications: • Material: Stamped steel • Finish: Chrome plated • Fitment: GM 8.5" 10-bolt rear differential • Application: 1986–1987 Buick Grand National, Turbo T, GNX, T-Type, Monte Carlo SS, G-body vehicles • Bolt pattern: 10-bolt • Includes fill plug access port • Direct bolt-on replacement for stock rear cover
📦 Includes: • Chrome differential cover only (no hardware or gasket included)
Condition Notes: • Mirror-like chrome finish on the outside. Inside has some light rust oxidation from storage. Overall the piece is in good condition. • Bolt holes and sealing surface are clean and true
💡 Why You Want It: Perfect for a clean, custom touch to your undercarriage. This chrome 10-bolt cover is both durable and stylish—ideal for restorations, show cars, or anyone upgrading from a rusted OEM cover.
⚠️ Disclaimer:
Item sold as-is. Buyer responsible for verifying fitment and proper torque specs during installation.
