Diesel Data: Automotive Repair

A/T Differential Backlash Inspection




A/T Differential Backlash Inspection

NOTE: The illustration shows the 4WD transmission; the 2WD transmission is similar.

1. Install the drive shaft and the intermediate shaft into the differential assembly.

2. Secure the driveshaft (A) in a bench vise (B) with soft jaws (C). To prevent damage to the driveshaft, always use soft jaws or equivalent material between the driveshaft and the vise.





3. Place the intermediate shaft (D) on a V-block (E), then fix the intermediate shaft using a grip (F) or equivalent.

4. Measure the backlash of the final driven gear (G) with a dial indicator (H).





5. If the backlash is out of the standard, replace the differential carrier; 4WD A/T Differential Carrier, Final Driven Gear, And Transfer Drive Gear Replacement, 2WD .