A Rockwell Locker lets off-road vehicles travel over the roughest and most unwelcoming terrain. The lockers instantly lock the differentials to distribute equal amounts of power to parallel wheels. If a wheel becomes stuck, the lockers distribute all the power to that wheel, allowing you to travel over rough trails. Installation is difficult and requires extensive knowledge of automobile maintenance. To install the locker, you will need to remove the axle.

 

Instructions

 

1- Attach the third member differential to the engine hoist and lift it after you remove the shafts. You need to use the hoist or a similar device because the third member weighs more than two tons.

 

2- Mark each cap on the third member. Draw a quick sketch of the pattern of the backlash and the contact; this is the ring pattern that circles the shaft. You will need this information when you reassemble the axle.

 

3- Remove the bull-gear bolts in the axle. Pull the two parts of the Rockwell Locker apart, which should come easily. Bolt the bull gear between the two pieces of the locker.

 

4- Drill a hole on the corner of the housing area to allow the bullhead to enter. Consult the manual for the Rockwell Locker you purchased in order to ensure that you are drilling in the precise location.

 

5- Press the new bearings into place, and set the differentials in place. Torque the bearings to a force of 175 pounds per foot, and then readjust to 25 pounds per foot using your torquing wrench.

 

6- Match the patterns on the locker with the sketch you created. Move the hardline from the locker, using a bulkhead setting. The hardline drops from outside of the third member. Use the air source to move the hardline.