You can download the pdf instructions here.

toms70bronco
toms70bronco

 

toms70bronco

— Apply a thin film of grease to the yoke where the seal will
ride.

toms70bronco

4. This groove is where the o-ring seats. It prevents the oil from
seeping out of the splines.

 

toms70bronco

— Install the o-ring into the groove as shown.
— The O-ring is only needed on FRONT output because it is
below the full oil mark.

toms70bronco

— Install the Flat Washer (re-used from the old yoke).

 

toms70bronco

— Install the nut and tighten down. The nut must be tight for
proper preload of the bearings. Per the Ford Truck Shop
Manual, this nut should be about 125-150 ft/lbs.