Looking for aftermarket parts to modify or upgrade your 1985 Ford F-150 with differentials? At Tunersports.com we carry a huge selection of the top name brand performance differential parts and accessories.

IN STOCK - DROPSHIPS YP FSF9-31-LWYukon Full Spools are a cost-effective way to convert a diff to 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each Yukon spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outstanding choice for dedic... Yukon Gear Lightweight Steel Spool For Ford 9in w/ 31 Spline Axles 1982-1987 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1987 Ford F-150 XLT Lariat $341.89 |

IN STOCK - DROPSHIPS YDAF9-370SVO-31Yukon dropout assemblies are built by expert Yukon technicians and come complete, properly shimmed and backlashed to spec. All you do is install the third member into your diff housing, bolt on the diff cover, add fluid, and roll. This unit features a nodular iron case which improves rigidity and po... Yukon Gear Ford 9in Differential w/Trac-Loc LSD Dropout Assembly 31 Spline 1982-1987 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1987 Ford F-150 XLT Lariat $1,606.89 |
IN STOCK - DROPSHIPS YDGF9-28-AGYukon 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 Trac Loc For Ford 9in With 28 Spline Axles. Aggressive Design 1982-1987 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1987 Ford F-150 XLT Lariat $908.89 |
IN STOCK - LOW YDGF9-28-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 Tracloc For Ford 9in With 28 Spline Axles. Street Design 1982-1987 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1987 Ford F-150 XLT Lariat $908.89 |
IN STOCK - DROPSHIPS YDGF9-31-AGYukon 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 Trac Loc For Ford 9in With 31 Spline Axles. Aggressive Design 1982-1987 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1987 Ford F-150 XLT Lariat $906.89 |
IN STOCK - LOW YDGF9-31-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 Trac Loc For Ford 9in With 31 Spline Axles. Street Design 1982-1987 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1987 Ford F-150 XLT Lariat $908.89 |

IN STOCK - DROPSHIPS ZP MINSF9-28USA Standard Gear Mini Spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open carrier in place of the spider gears and delivers 100% power to both tires at all times. These units are not recommended for street-driven vehicles. Fu... USA Standard Mini Spool For Ford 9in w/ 28 Spline Axles 1982-1987 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1987 Ford F-150 XLT Lariat $66.78 |
IN STOCK - DROPSHIPS ZP MINSF9-31USA Standard Gear Mini Spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open carrier in place of the spider gears and delivers 100% power to both tires at all times. These units are not recommended for street-driven vehicles. Fu... USA Standard Mini Spool For Ford 9in w/ 31 Spline Axles 1982-1987 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1987 Ford F-150 XLT Lariat $65.53 |

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 1982-1987 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1987 Ford F-150 XLT Lariat $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 1982-1987 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1987 Ford F-150 XLT Lariat $301.89 |

OUT OF STOCK YZLABF-KITThe 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 Zip Locker Bulkhead Fitting Kit 1982-1996 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1992 Ford F-150 XLT Lariat $49.18 |
IN STOCK - DROPSHIPS YZLAL-01Yukon Gear 20 Long Air Line For Zip Locker 1982-1996 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1992 Ford F-150 XLT Lariat $37.87 |
IN STOCK - DROPSHIPS YZLAL-KITYukon Gear Air Line Repair Kit / Zip Locker 1982-1996 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1992 Ford F-150 XLT Lariat $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 1982-1996 Ford F-150 XL 1983-1986 Ford F-150 Base 1985-1992 Ford F-150 XLT Lariat $187.89 |