Operation CHARM: Car repair manuals for everyone.

Corporate - Standard

Fig. 1 Chevrolet 9-1/2 inch semi-floating drive axle w/standard differential exploded view. Full floating models similar:




Fig. 2 Ring gear installation:





1. If case side bearings are to be replaced, remove bearings using suitable puller, ensuring that puller is properly seated in recesses in case.
2. Remove ring gear retaining bolts, then tap gear from case using suitable drift. Do not pry gear from case as machined surfaces will be damaged.
3. Remove side gears and thrust washers from case noting position for assembly.
4. Inspect components as outlined in ``Cleaning and Inspection,'' and replace as needed. Coat all components with specified axle lubricant prior to assembly. If components are to be reused, they must be installed in original position.
5. Install side gears and thrust washers in case, Fig. 1.
6. Install thrust washers on differential pinions, using grease to adhere washers.
7. Position differential pinions in case 180° apart in mesh with side gears, then rotate side gears to roll pinions into position.
8. When pinions are aligned with shaft openings in case, install pinion shaft and temporarily secure shaft with new lock bolt. Do not torque lock bolt to specifications until axle shafts have been installed.
9. Align ring gear with bolt holes in case and press on adapter plug J-8107-04 or equivalent, Fig. 2, to start gear on case pilot.
10. Install new ring gear bolts and tighten bolts alternately and evenly to draw gear onto case. New ring gear bolts must be used during assembly. Do not reuse ring gear bolts.
11. Ensure that ring gear is fully seated, then torque retaining bolts to 105 ft. lbs.
12. Position side bearings on case and seat bearings using suitable driver. When installing second bearing, support case with suitable pilot to prevent damaging cage of bearing already installed.