Looking for aftermarket parts to modify or upgrade your 1981 Mercury Cougar with differential spider gears? At Tunersports.com we carry a huge selection of the top name brand performance differential spider gear parts and accessories for your Cougar.
Whether you have a 1981 Mercury Cougar in Base to XR-7 trim we have you covered. We have 5 differential spider gears available to mod your Cougar. All parts have free shipping to the Continental US 48 States.
 IN STOCK - DROPSHIPS YPKF8.8-T/L-31Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set.... Yukon Gear Spider Gear Kit For Ford 8.8in / 31 Spline / Trac Loc Posi 1979-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base $336.89 |
 IN STOCK ZIKF7.5-S-28USA Standard Gear Standard Spider Gear Set For Ford 7.5in 1980-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base $143.89 |
 IN STOCK - DROPSHIPS ZIKF8.8-S-28USA Standard Gear Standard Spider Gear Set For Ford 8.8in / 28 Spline 1979-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base $181.89 |
 IN STOCK - DROPSHIPS ZIKF8.8-S-31USA Standard Gear Standard Spider Gear Set For Ford 8.8in / 31 Spline 1979-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base $181.89 |
 IN STOCK - DROPSHIPS ZIKF8.8-T/L-31USA Standard Gear Standard Spider Gear Set For Ford 8.8in Trac Loc Posi / 31 Spline 1979-1982 Mercury Cougar XR-7 1981-1986 Mercury Cougar Base $265.89 |