How to Install AFE Pro Series Rear Differential Cover - 9.25 in. on your Ram

• Please read the entire instruction manual before proceeding.
• Ensure all components listed are present.
• If you are missing any of the components, call customer support at 951-493-7100.
• Ensure you have all necessary tools before proceeding.
• Do not attempt to work on your vehicle when the engine is hot.

Refer to Figure A for steps 1-3
Step 1: Park your truck on level ground and apply the parking brake.
Step 2: Using a 15mm socket, remove the sway bar from the rear axle.
Step 3: Using a 21mm socket and wrench, remove the rear panhard bar.

Refer to Figure B for steps 4-9
Step 4: Place a drain pan under the rear differential cover.
Step 5: Using a 13mm socket, remove all but 1 of the bolts from the differential cover leaving the last bolt in one of the top holes. Loosen but do not remove the last bolt.
Step 6: Using a gasket scraper, start at the bottom and carefully insert between the cover and the differential housing. Pry the cover off. Remove last bolt and cover from differential.
Step 7: Allow all the oil to drain.
Step 8: Using a gasket scraper, carefully remove the old gasket material until the sealing surface is clean.
Do not gouge the differential sealing surface.
Step 9: Using a lint free rag, wipe all remaining oil and old gasket from differential housing.

Refer to Figure C for step 10
Step 10: Using the silicone provided lay a continuous line around the cover
(as shown in the photo above).

Refer to Figure D for steps 11-12
Step 11: Position the cover by aligning the bolt holes. Start one of the new allen head bolts at the top bolt hole. Continue around the cover until all bolts are started.
Step 12: Using a 5/16 allen socket, torque all allen head bolts to 12-16 ft. lbs.in a cross tightening pattern.

Refer to Figure E for step 13
Step 13: Using a 14mm socket, install the drain plug and crush washer into the aFe differential cover.

Refer to Figure F for steps 14-15
Step 14: Apply teflon pipe sealant tape on the threads of the NPT plug components before installing.

When installing kit number 46-70270 only:
Step 15: Install the 1” NPT plug in the passenger side of the aFe differential cover.

Refer to Figure G for steps 16-18
Step 16: Fill the aFe differential cover with new gear oil. Gear oil will run out of the 1/8 NPT hole on the driver’s side of the aFe differential cover when it is filled. Install the provided 1/8 NPT plug in the oil level hole and tighten.

When installing kit number 46-70272 only:
Step 17: Install the supplied 6" deep reach magnet in the top fill hole and tighten using 1/2" ratchet torque wrench. DO NOT OVER TIGHTEN.

When installing kit number 46-70270 only:
Step 18: Install the supplied ¾" NPT plug in the top fill plug hole and tighten using 1/2" ratchet torque wrench. DO NOT OVER TIGHTEN.

NOTE: If your vehicle has been modified or “lifted” and the axle has been rotated, you will need to establish the correct oil level for your vehicle. NOTE: if fluid is overfilled, it can be drained to the proper level through the side oil level port.

Refer to Figure H for steps 19-21
Step 19: Reinstall the rear panhard bar using the factory hardware and tighten.
Step 20: Reinstall the rear sway bar using the factory hardware and tighten.
Step 21: Your installation is now complete. Drive at least 25 miles and check oil level using aFe sight glass and fill if necessary.