aFe Rear Differential Cover for 1986-2017 Ford Powerstroke F250/F350 & Excursion (Machined Finish, w/ Oil)

aFe Power's new rear differential cover brings performance engineering to the protection of your axle's differential. This differential cover is constructed out of durable die-cast A380 aluminum with reinforced ribs and wrinkle black powder-coating with machined fins for maximum strength and styling. This cover comes with all necessary hardware and includes an O-ring for a leak-free seal. The Pro Series differential covers include a oil level sight glass and deep reach magnetic dip stick for maximum protection. This cover fits the 10.25 & 10.50-12 Bolt Axles. 

5 Quart Lube Capacity:This cover has about a 5 quart lube capacity at the factory line, factory cover holds about 4 quarts. 

Built-in Internal/External fins:Built-in internal and external fins transfer heat from the fluid to the outside air for maximum cooling. 

Magnetic Drain/Fill Plug: This system incorporates a magnetic drain plug to capture loose particles for maximum rear-end protection. 

Oil Level Sight Glass:Pre-installed large oil level sight glass with calibration plug set to the factory fluid level to eliminate overfilling. 

Group IV synthetic base:This competition proven formulation utilizes a group IV synthetic base along with a proprietary additive package that reduces drag, resist foaming and maintains its viscosity under extreme heat and high loads. 

Usage:The PRO Guard D2 Synthetic 75W-90 limited slip gear oil exceeds the performance requirements of API GL-5 recommended for both open and limited slip applications. 

Note 1: Not for use in transmissions. Do not mix with other fluids. 

Note 2: This cover fits the 10.25 & 10.50-12 Bolt Axles, see comparison photo below for verification. 

Also Fits: