Rear Axle Bearing & Seal (Montero, Pickup): Installation

1. Check axle shaft for .004" (.10 mm) runout. Apply multipurpose type grease (SAE J310a, NLGI 2EP) to outside circumference of bearing outer race. Press race into bearing case using Installer (MB990937) and Driver (MB990938). Follow same procedure for oil seal, using different Installer (MB990935).
2. Apply grease to lip of oil seal and to roller surfaces of bearing inner race. Install rear brake assembly and bearing case. Using Installer (MB990799), press inner bearing race onto the axle shaft.
3. Pack bearing case and axle threads with grease. Install lock washer (tab aligned with axle slot) and lock nut (chamfer toward lock washer). Tighten nut to 130-159 ft. lbs. (180-220 N.m). Bend tabs on lock washer into slots of lock nut.
4. Apply grease to oil seal area of rear axle housing. Drive new oil seal into end of rear axle housing, using Installer (MB990930) and Driver (MB990938). Adjust clearance between bearing case and rear axle by inserting .04" (1 mm) shim and "O" ring into left rear axle housing.
5. Apply semi-drying sealant to mating surface of bearing case. See Fig 1 . Install left axle shaft into rear housing and tighten nuts diagonally to 36-43 ft. lbs. (50-60 N.m).
   Fig 1: Mirage Rear Brake Assembly

   
6. Install right axle shaft without shims and "O" ring. Temporarily tighten to about 53 INCH lbs. (6 N.m). Using a feeler gauge, measure clearance between bearing case and rear axle housing.
7. Remove right axle shaft. Install shims to equal measurement plus .002-.008" (.05-.20 mm). Install "O" ring to right rear axle housing. Apply sealant to mating surface of bearing case. See Fig 2 . Install axle into housing, tightening nuts diagonally to 36-43 ft. lbs. (50-60 N.m).
8. Using dial indicator, check axle shaft for .002-.008" (.05-.20 mm) end play.

Fig 2: Applying Sealer for "O" Ring and Shim Apply to mating surface of bearing case.