PINION DEPTH MEASUREMENT AND ADJUSTMENT
Measurements are taken with pinion cups and pinion bearings installed in housing. Take measurements with a Pinion Gauge Set, Pinion Block 8177 (6) Arbor Discs 8541 (8) and Dial Indicator C-3339.
Scheme 30
Scheme 31
Scheme 32
Scheme 33
- Assemble Pinion Height Block 6739 (2) Pinion Block 8177 (1) and rear pinion bearing onto Screw 6741.
- Insert assembled height gauge components, rear bearing and screw into the housing through the pinion bearing cups.
- Install front pinion bearing and Cone-Nut 6740 onto the screw. Tighten cone-nut until Torque To Rotate screw is 1.7 N.m (15 in. lbs.).
- Place Arbor Discs 8541 (1) on Arbor D-115-3 (1) in position in the housing side bearing cradles. Install differential bearing caps on arbor discs and tighten cap bolts to specification.
- Assemble Dial Indicator C-3339 into Scooter Block D-115-2 and secure set screw.
- Place Scooter Block/Dial Indicator in position in the housing so dial probe and scooter block are flush against the surface of the pinion height block. Hold scooter block in place and zero the dial indicator. Tighten dial indicator face lock screw.
- Slide the dial indicator (3) probe across the gap between the pinion height block and the arbor bar (1) with the scooter block (2) against the pinion height block. Slide the dial probe to the crest of the arbor bar and record the highest reading.
- Select a shim equal to the dial indicator reading plus the drive pinion gear depth variance number marked on the shaft of the pinion gear using the opposite sign on the variance number. For example, if the depth variance is -2, add +0.002 in. to the dial indicator reading.
- Remove the pinion depth gauge components from the housing.