Found a diff cover that's supposed to fit. Called the shop and they informed me to double check clearance duty to panhard bar. Total height from gasket service is 3 1/2 inches.GM Girdles, Chevy 8.2"/8.5" 10 Bolt Rear End Girdle - Low Profile, TA_1807A | TAPerformance.com http://www.taperformance.com/proddetail.asp?prod=TA%5F1807A (Share from CM Browser)