Pinion Gear: Adjustments

1. Press front and rear bearing outer races into gear carrier using a press or a hammer and a suitable drift. Ensure outer race makes full contact with gear carrier and does not tilt during installation.

Fig. 16 Installed position of tool for checking drive pinion height:

2. Install drive pinion bearings and tools from kit C-4626 into gear carrier according to tool manufacturer's instructions. Gradually tighten nut on installation tool, until drive pinion front and rear bearing preload is 7-13 inch lbs., without oil seal.

Fig. 17 Positioning tool in side bearing seat:

Fig. 18 Drive pinion height selective shim chart:

3. Mount tool No. MB990720 in gear carrier side bearing seat, then select a suitable shim from chart, which corresponds to clearance between tools C-4626 and MB990720. When installing tool MB990720, ensure side bearing seat is clean and cut out portion of tool is positioned as shown.

Fig. 19 Installing drive pinion rear bearing:

4. Install selected shim between rear bearing and drive pinion, then press rear bearing onto drive pinion.