Chevrolet Salisbury Semi-Floating

Salisbury type semi-floating rear axle:

Semi-floating Rear Axle W/9 1/2 Inch Ring Gear:

In these axles, the axle housing and differential carrier are cast into an integral assembly. The drive pinion assembly is mounted in two opposed tapered roller bearings. The pinion bearings are preloaded by a spacer behind the front bearing. The pinion is positioned by a washer between the head of the pinion and the rear bearing.
The differential is supported in the carrier by two tapered roller side bearings. These bearings are preloaded by spacers located between the bearings and carrier housing. The differential assembly is positioned for proper ring gear and pinion backlash by varying these spacers. The differential case houses two side gears in mesh with two pinions mounted on a pinion shaft which is held in place by a lock pin. The side gears and pinions are backed by thrust washers.

Construction of the axle assembly is such that service operations may be performed with the housing installed in the vehicle or with the housing removed and installed in a holding fixture. The following procedure is necessary only when the housing requires replacement.
1. Raise vehicle and place jackstands under frame side rails. Support axle housing with a suitable jack.
2. Drain lubricant from axle housing and remove propeller shaft.
3. Remove wheel and brake drum.
4. Disconnect parking brake cable from lever and at brake flange plate.
5. Disconnect hydraulic brake lines from connector and lower shock mounting from axle brackets.
6. Remove vent hose from axle vent fitting if equipped.
7. Disconnect height-sensing and brake proportioning valve linkage if equipped.
8. Support assembly with a hydraulic jack and remove rear stabilizer bar.
9. Remove U-bolts, spring plates and spacers from axle assembly.
10. Lower jack and axle assembly.
11. Reverse procedure to install.