6 Quarts Gear Oil Included: This kit includes 6 Quarts of fully synthetic Pro Guard Gear Oil 75W-90. This competition proven formulation utilizes a group IV synthetic base along with a proprietary additive package that reduces drag, resists foaming and maintains its viscosity under extreme heat and high loads.
Fitment: 1986-2018 Ford F250/F350/F450/F550 Super Duty - SINGLE REAR WHEEL ONLY - with 12-bolt 10.25" & 10.50" axles. This cover will not fit 2017-2018 F350 Super Dutys with 14-bolt Dana rear ends. Please confirm your truck's rear end type before ordering.