Bronco II 2WD V6-177 2.9L (1986)
Seals and Gaskets: Service and Repair
Fig. 7, Replacing extension housing rear seal
1.
Raise and support vehicle.
2.
Install scribe marks on driveshaft end yoke and rear axle companion flange, then remove driveshaft.
3.
Using tool T71P-7657-A or equivalent, remove oil seal, Fig. 7.
4.
Using tool T77L-7697-E or equivalent, remove extension housing bushing.
5.
Using tool T77L-7697-F or equivalent, install new extension housing bushing.
6.
Inspect sealing surface of universal joint yoke for scoring, replacing yoke as necessary.
7.
Inspect counterbore of housing for burrs, removing as necessary.
8.
Using tool T74P-77052-A or equivalent, install new oil seal. Coat inside diameter at end of rubber boot portion of seal and the front universal joint
spline with suitable lubricant.
9.
Install driveshaft, aligning scribe marks, then lower vehicle and check transmission fluid level, adding fluid as necessary.