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RING GEAR BACKLASH MEASUREMENT 1. Set up Dial Indicator Set C-3339-A with Clamp SP-5426 (1), Post SP-5425-B (2) and Metric Dial 2. Rotate ring gear one direction to take up clearance to pinion. Verify indicator tip is in contact with ring 3. If backlash measurement is less than 0.13 mm (0.005 in.), it is necessary to decrease the snap 4. If backlash measurement is greater than 0.18 mm (0.007 in.), it is necessary to increase the snap ring GEAR CONTACT PATTERN The ring gear and pinion teeth contact patterns will show if the pinion depth is correct in the housing. It will also 1. Apply a thin coat of hydrated ferric oxide or equivalent to the drive and coast side of the ring gear teeth. 2. Wrap, twist, and hold a shop towel around the pinion yoke to increase the turning resistance of the pinion. This will provide a more distinct contact pattern. 3. With a boxed end wrench on a ring gear bolt, rotate the differential case one complete revolution in both direc- tions while a load is being applied from shop towel. The areas on the ring gear teeth with the greatest degree of contact against the pinion teeth will squeegee the 3 - 126 FRONT AXLE - C200FE WK |