Looking for in-stock aftermarket parts to modify or upgrade your 1981 Ford Bronco with differentials? At Tunersports.com we carry a huge selection of the top name brand performance differential parts and accessories.

IN STOCK - DROPSHIPS ZP FSF9-31Installing a quality USA Standard Gear spool is a cost-effective way to get 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each USA Standard Gear spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outs... USA Standard Spool For Ford 9in / 31 Spline 1975-1986 Ford Bronco Custom 1978-1981 Ford Bronco Ranger XLT $179.89 |
IN STOCK - DROPSHIPS ZP FSF9-35Installing a quality USA Standard Gear spool is a cost-effective way to get 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each USA Standard Gear spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outs... USA Standard Spool For Ford 9in / 35 Spline 1975-1986 Ford Bronco Custom 1978-1981 Ford Bronco Ranger XLT $301.89 |

IN STOCK - DROPSHIPS YZLAL-01Yukon Gear 20 Long Air Line For Zip Locker 1980-1981 Ford Bronco Ranger XLT 1980-1993 Ford Bronco Custom $37.87 |
IN STOCK - DROPSHIPS YZLAL-KITYukon Gear Air Line Repair Kit / Zip Locker 1980-1981 Ford Bronco Ranger XLT 1980-1993 Ford Bronco Custom $63.02 |
IN STOCK - DROPSHIPS YZLPUKThe Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver selectability.... Yukon Gear Pump Up Kit / Zip Locker 1980-1981 Ford Bronco Ranger XLT 1980-1993 Ford Bronco Custom $187.89 |