Z Whip SAE 14pc Differential Cover Bolt Kit 5/16-18 Flange Bolts Compatible with GM Olds Pontiac Buick 10-Bolt 12-Bolt 14-Bolt Ford 8.8 7.7 DANA 25 27 30 35 44 Spicer 20 Rear Ends Standard Threads - Zyxaxis Inc., 99447817

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• YOU MUST MAKE SURE YOUR DIFF USES SAE BOLTS. THESE WILL NOT FIT GM 10-bolt and 14-bolt Full size Truck Differentials made after the mid 90s. THESE WILL NOT WORK ON CHEVY TRUCKS SUBURBAN TAHOE YUKON TRAILBLAZER ETC. AFTER 1998 POSSIBLY AFTER 95. Please check your thread before purchasing. Compatible with all Chevy Pontiac Oldsmobile Buick and GM 12-bolt Differentials. Also Compatible with all GM 10-bolt and 14-bolt Differentials up to the mid-late 1990s. If your vehicle is in the mid 90s please be sure to check to see if you have Metric or standard threads. (most metric will have numbers on the head like 8.8 10.9 12.9) Compatible with Ford Mustang 1986-2014(Except Cobras) and most fords 1983-2003 with a 7.7 or 8.8. Also fits Dana 25 27 30 35 44 and Spicer 20 found in jeeps. Comes with 14 Grade 5 Serrated Flange Hex Head bolts 5/16-18 x ¾” Clear zinc to keep them from rusting or corroding. Obviously, some rear end covers will only use 10 or 12 but enough is included to do any differentials listed. We are an AS9100D and ISO 9001:2015 Certified Manufacturer that produces aerospace parts for The Boeing Aircraft Company and The US Military. Parts we produce fly at 30,000 feet where failure is not an option. We put the same quality into every part we produce.