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(35) Verify differential case and ring gear runout by measuring ring to pinion gear backlash at eight After the proper backlash is achieved, perform Gear Contact Pattern Analysis procedure. GEAR CONTACT PATTERN The ring gear and pinion teeth contact patterns will show if the pinion depth is correct in the hous- The TOP LAND of the gear tooth is the top surface of the tooth. The PROFILE of the gear tooth is the NOTE: If the PROFILE across the tooth is the same (1) Apply a thin coat of hydrated ferric oxide or equivalent to the drive and coast side of the ring gear (2) Wrap, twist and hold a shop towel around the pinion yoke to increase the turning resistance of the (3) With a boxed end wrench on the ring gear bolt, rotate the differential case one complete revolution in The areas on the ring gear teeth with the greatest degree of contact against the pinion teeth will squee- DIFFERENTIAL BEARING PRELOAD CHECK The final check on the differential assembly before installing the axles is torque to rotate pinion and dif- Torque to rotate the differential and pinion should be the torque to rotate the pinion plus 0.79-1.24 N·m Fig. 24 BACKLASH SHIM Fig. 25 GEAR DESCRIPTION 1 - TOP LAND TJ FRONT AXLE - 216FBI 3 - 61 FRONT AXLE - 216FBI (Continued) |