Block a front tire fore and aft ... Reinstall the axleshaft, keeping as much weight off the seal as possible as the axle slides in, and evenly tighten the retainer bolts. How tight?

Four-wheel-drive trucks add a second set of gears and another differential to the front axle to transmit engine ... a master install kit (bearings, seals, ring gear bolts, and shims), a new ...