TM 5-3810-300-24 & P2
1. Grease Seal Installation.
It is impossible to overstress the importance of proper grease seal installation in both the top and bottom positions of the
steering knuckle. Incorrect installation could result in premature lubricant contamination and a need for more frequent
lubrication and overhaul service intervals. Therefore, for maximum, operating service from the front axle assembly
grease seals should be installed by the following procedures.
2. Install Upper Grease Seal Installation.
If it was necessary to remove the upper seal from the steering knuckle, use the following to install a new seal.
A. Place steering knuckle bottom side up in a vise equipped with soft metal protectors. Position upper knuckle boss
(top end down) between Jaws of vise and lock securely.
B. With the top end of the knuckle held firmly in this position, place the seal over the knuckle counterbore, with the
rubber lip facing up.
C. Using a suitable sleeve and a bronze drift, tap
the seal into the knuckle counterbore until it