Ford 8.8 31 Spline-Bearing OXLocker Installation Manual

Ford 8.8 31 Spline-Bearing OXLocker Installation Manual - This is your OX Locker installation manual for the Ford 8.8 This installation guide is illustrated with a Jeep TJ (rear). Note: Use of an installation kit that includes the following Timkin bearing and race part numbers is required: 31 Spline-Bearing # LM603049 Race # LM60312.

Carrier Assembly

• 1. Install the 4 springs in the 4 chamfered holes. 

• 2. Install thrust washer behind locking side gear. 

• 3. Remove the small cap, locking ring, locking gear and the following parts shown-set screw, dowel pin, shaft, spider gear (on opened end) spider gear washer, spider gear cap and snap ring.

• 4. Your carrier should now look like this-open on one side with the shaft and spider gear missing. This will enable you to install your axles and c-clip later through these procedures. 

• 5 Install locking side gear with gears facing engagement with spider gears. 

• 6. Slide the ring gear around the carrier. 

• 7. Install locking ring gear with gears facing engagement with locking side gear.

• 8. The flat side must be facing up! Push locking ring down and let the springs return it to ensure smooth operation (repeat several times). 

• 9. Install small carrier cap -align holes, make sure it slides into locking side gear smoothly. 

NOTE: Make sure this cap sits flush with all 8 cams -if cap is not flush, it could cause severe damage to the carrier…..

OX Locker Installation - FORD 8.8 

• 1. Remove tires, brakes, rotors, and axles in accordance with your vehicle’s manufacturer’s service manual (MSM). Drain oil then remove carrier. Now is a good time to check seals and clean entire housing. 

• 2. Install your bearings and shims in accordance with your MSM. Note: installation kit not included -bearings, shims, etc. 

• 3. Check your pattern in accordance with your MSM. Note: gear set up should be done by a certified mechanic. 

• 4. Rotate the carrier with opened end facing out so that you can install the c-clips. 

• 5. Push axles in and install the c-clips, once this is done pull axles out some until they are properly in place.

• 6. Carefully Install the shaft. The end with the cross hole should be on this end. With the cross hole running north/south and the shaft not be pushed all the way through. 

Leave some extending out this end to enable you to install the spider gear, cap, dowel pin, and set screw.