Differential Case End Play Check
WARNING: This page is about a different car, the 2002 Ford RV Cutaway, 2002 Ford Econoline, 2002 Ford E550 Super Duty, 2002 Ford E450 Super Duty, and 2002 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- Install the outboard spacers in the side from which they were removed.
- Place the special tool on the differential case hubs, and position the assembly into the differential housing.
- For Model 60/70 axles, use tool 205-D047.
- For Model 70TR. axles, use tool 205-D048.
- Mount the special tools as shown. Locate the tip of special tool 308-021 on a flat surface of one of the bolts.
- Force the differential case as far as possible toward the indicator. With force still applied, set the indicator at 0.
- Force the differential case as far as it will go in the opposite direction. Record the total differential case end play reading.
- After making sure the reading is correct, remove the special tools and the differential from the differential housing. Do not remove the dummy Bearings from the differential case at this time.
NOTE:
Remove all nicks, burrs, dirt, etc., from the differential case hubs, to allow the bearings to rotate freely.
NOTE:
Use Dial Indicator with a minimum travel capability of 5.08 mm (0.200 inch).
The rear axle uses a combination of differential bearing shims and selective outboard spacers to control differential case end play. The old outboard spacers provide a good starting point when setting end play. However, if additional shimming is necessary, beyond what the hardened differential bearing shims can provide, select and install different thickness outboard spacers.
The rear axle uses a combination of differential bearing shims and selective outboard spacers to control differential case end play. The old outboard spacers provide a good starting point when setting end play. However, if additional shimming is necessary, beyond what the hardened differential bearing shims can provide, select and install different thickness outboard spacers.
NOTE:
Repeat this step and the following step until the same reading appears on the indicator each time. Record the reading. This is the total differential bearing shim thickness required, less preload. The final calculation occurs later during assembly.