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Looking for aftermarket parts to modify or upgrade your 1981 Pontiac Firebird with differentials? At Tunersports.com we carry a huge selection of the top name brand performance differential parts and accessories.
 IN STOCK - DROPSHIPS YDGGM7.5-3-26-SMYukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance you need across a wide variety of terrains. The Dura Grip is engineered for long life and is completely rebuildable. Dura Grips are constructed with a h... Yukon Gear Dura Grip Positraction For GM 7.5in & 7.625in w/ 26 Spline Axles / 3.23+ 1977-1981 Pontiac Firebird Esprit / Formula 1977-1989 Pontiac Firebird Base / Trans Am $846.89 |
 IN STOCK - LOW YDGGM7.5-3-28-SMYukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance you need across a wide variety of terrains. The Dura Grip is engineered for long life and is completely rebuildable. Dura Grips are constructed with a h... Yukon Gear Dura Grip Positraction For GM 7.625in w/ 28 Spline Axles / 3.23+ 1977-1981 Pontiac Firebird Base / Esprit / Formula / Trans Am $910.89 |
 IN STOCK - DROPSHIPS YP MINSGM7.5-26Yukon mini spools provide the traction of a full spool at an economical cost.... Yukon Gear Mini Spool For GM 7.5in w/ 26 Spline Axles 1977-1981 Pontiac Firebird Esprit / Formula 1977-1989 Pontiac Firebird Base / Trans Am $333.89 |