cjsxj87
NAXJA Forum User
- Location
- Connecticut
Hokay so my pinion bearing is fisted. How hard would it be to replace? Any tips? Im going t try and not bring it to someone who does gears.
Or should I just crank down on the pinion nut?
big pipe wrench on the yoke, and cranking on it with my breaker bar
Chances are if one of the pinion bearings has excessive wear, the other one does too.I <3 torquing pinion nuts.
Which pinion bearing is it? you can change the outer one without disassembling the entire axle. In my case, my outta wack front d-shaft only wore out my outer bearing, simple 20 minute fix under the jeep, new outer bearing/seal/pinion nut later, all fixed.
Chances are if one of the pinion bearings has excessive wear, the other one does too.
Might as well do the carrier bearings at the same time since the carrier has to come out anyway. Make sure you put a strong magnet on the inside of the diff cover to gather wear metal out of the oil.Thanks guys! Yeah Im going to replace both. The pinion bearins are pretty fisted.
... since you're an axle expert, what's your take on having to reset the gears when the bearings are replaced? I've always wondered about this, figured what I'd do if I needed to replace bearings is run a pattern, replace pinion bearings and re-shim if needed to get the same pattern back, then replace carrier bearings and re-shim as needed to get the same pattern back again. Probably overkill but my thinking on it was that getting the same pattern back after doing the pinion bearing leaves me with a known correct carrier offset / backlash setting and also a known pinion depth, so I don't have to worry about adjusting the shims on both the pinion and carrier at the same time since the two settings affect each other to some degree.Might as well do the carrier bearings at the same time since the carrier has to come out anyway. Make sure you put a strong magnet on the inside of the diff cover to gather wear metal out of the oil.
If the pattern is good before you remove the carrier then any changes will be the same on both sides and even if it wasn't the same on both sides any change would be negligible. The difference between a new and worn bearing is unlikely to be even .001". It is better to let it go back in in the same configuration to prevent any excess wear caused by the mesh changing. If the pattern is way off then it might be necessary to make changes but at that point you might as well install new gears.... since you're an axle expert, what's your take on having to reset the gears when the bearings are replaced? I've always wondered about this, figured what I'd do if I needed to replace bearings is run a pattern, replace pinion bearings and re-shim if needed to get the same pattern back, then replace carrier bearings and re-shim as needed to get the same pattern back again. Probably overkill but my thinking on it was that getting the same pattern back after doing the pinion bearing leaves me with a known correct carrier offset / backlash setting and also a known pinion depth, so I don't have to worry about adjusting the shims on both the pinion and carrier at the same time since the two settings affect each other to some degree.