Automatic Locking Hub Without Shift-On-The-Fly System: Installation
- Ensure transfer case lever is in 2H position. Ensure hub flange, lock washer and axle splines are clean. Install hub and rotor assembly with bearings. Install hub nut with chamfered edge facing outward. Tighten hub nut to 22 ft. lbs. (30 N.m), then loosen.
- While using a spring scale, tighten hub nut to obtain proper bearing preload. See Figure . See WHEEL BEARING PRELOAD . Install lock washer so hole in washer aligns with screw hole in hub nut. Install lock screw.
- Install inner cam so cam keyway aligns with spindle groove. If inner cam is difficult to install, Installer (J-38194) and a plastic hammer may be used to lightly tap inner cam to ensure it is fully seated. Ensure cam teeth face outward.
- If new parts have been installed, determine shim thickness. To determine shim thickness, raise lower control arm with a floor jack until axle shaft is horizontal. Install Gauge (J-36836 and J-36835-2) over end of axle shaft until gauge contacts lock washer. Using feeler gauge, measure clearance between gauge and snap ring groove. If clearance exceeds .004" (.10 mm), install shims between clutch assembly and snap ring upon installation of snap ring.
- Remove gauge. DO NOT remove inner cam. Apply multipurpose grease to axle shaft splines. Apply grease to proper areas of drive clutch assembly and housing. See Fig 1
. Apply proper amount of grease to designated areas. See HUB LUBRICATION SPECIFICATIONS
.HUB LUBRICATION SPECIFICATIONS
Application (1) Ounces (g) "A" Area .25 (7.1) "B" Area .11 (3.1) "C" Area .29 (8.2) "D" Area .15 (4.2) (1) See Fig 1 . - Align cut-out area of drive clutch assembly with concave area of inner cam. Engage cam teeth of drive clutch assembly with inner cam teeth by rotating axle shaft.CAUTION: Always install NEW snap ring on axle shaft.
- Place snap ring installer in center hole of axle shaft. Hit snap ring installer by hand while pulling axle shaft outward. DO NOT use hammer to install snap ring. Force snap ring into position and ensure it is fully seated.
- Apply sealer (Loctite 515) to both sides of housing assembly and flange surface of driven clutch assembly. Install housing-to-hub bolts and tighten to 43 ft. lbs. (58 N.m). Ensure hub rotates smoothly. If so, shim selection is correct. Install brake caliper and wheel. Tighten bolts and nuts to specification. See TORQUE SPECIFICATIONS .