| Table 1: | Noise in Drive |
| Table 2: | Noisy When Coasting |
| Table 3: | Intermittent Noise |
| Table 4: | Constant Noise |
| Table 5: | Noisy on Turns |
| Table 6: | Two Speed Axle Fails to Shift into High or Low Range |
Problem | Action |
|---|---|
The drive pinion to the ring gear has excessive backlash. | Adjust the drive pinion to ring backlash. |
The drive pinion and the ring gear are worn. | Replace the drive pinion and ring set. |
The drive pinion bearings are worn. | Replace the bearings. |
The drive pinion bearings are loose. | Adjust the bearings. |
The drive pinion has excessive end play. | Adjust the drive pinion end play. |
The differential bearings are worn. | Replace the differential bearings. |
The differential bearings are loose. | Adjust the bearings. |
The rear axle lubricant is low. | Fill with synthetic rear axle lubricant. |
The wrong rear axle lubricant is being used. | Replace the rear axle lubricant with the proper synthetic lubricant. |
The rear axle housing is bent. | Replace the rear axle housing. |
Problem | Action |
|---|---|
Rear axle noises heard on drive will usually be heard also on coasting, although not as loud. | Adjust or replace the drive pinion and ring gear set. |
The drive pinion gear and ring are too tight. Noise is audible when slowing down and disappears when driving. | Adjust the drive pinion to ring gear backlash. |
Problem | Action |
|---|---|
The ring gear is warped. | Replace the differential drive pinion gear and ring gear set. |
The differential case bolts are loose. | Tighten the differential case bolts. |
Problem | Action |
|---|---|
A flat spot is on the drive gear or on the ring gear teeth. | Replace the differential drive pinion gear and ring gear set. |
A flat spot is on the bearing. | Replace the bearing. |
The differential drive pinion gear splines are worn. | Replace the differential drive pinion gear and ring gear set. |
The rear axle (shaft) housing cover locator holes are worn. | Replace the rear axle shaft. |
The wheel hole studs are worn. | Replace the wheel hub studs. |
The rear axle shaft is bent. | Replace the rear axle shaft. |
Problem | Action |
|---|---|
The differential side gears and the pinion gears are worn. | Replace the worn parts. |
The differential spider is worn. | Replace the worn parts. |
The rear axle shaft splines are worn. | Replace the rear axle shafts. |
Problem | Action |
|---|---|
The electrical circuit is inoperative. | Repair the circuit. |
The shift motor assembly is inoperative. | Repair or replace the shift motor assembly. |
