wenger828 Posted October 5, 2016 Report Share Posted October 5, 2016 As title states, i've noted that my right rear brake makes a squeaking noise, changes with going around turns. Lifted my car and noted the right rear wheel had about almost 1/2" (estimate) of in and out play/slop. Left rear had noticeably less. I've been road course'ing the car and noted this after my last track session. Also brake pedal has gotten "softer", suspect that the in and out movement of right rear axle shaft is opening up the distance between brake pads & rotor. Can anyone point me in the right direction as to what to look before before i open up the rear diff? What contains/limits the movement of the rear axle shafts (I know there are U-clips that secure the axle from coming out)? Is the axle shaft bearing pressed onto the axle shaft and help contain movement? Any tips appreciated! Quote Link to comment Share on other sites More sharing options...
Robert M Posted October 5, 2016 Report Share Posted October 5, 2016 (edited) The main pin running through the middle of the carrier is the only thing I know of that limits the axles from moving inward and the C-clips keep the axles from moving outward. If I remember correctly, the 8.8 axle bearings run directly on the axle surface and do not have an inner bearing race or retaining ring that are pressed on. The only part that is pressed on is the ABS ring. I believe some of the aftermarket C-clip 8.8 axles (Moser, Strange) are hardened in this bearing contact area for greater longevity and also are larger diameter (more robust) where the oem 8.8 axles narrow down. There is a range for the axle end play, for some reason I am thinking .125 maximum but that may be wrong? R Edited October 5, 2016 by Robert M Quote Link to comment Share on other sites More sharing options...
wenger828 Posted October 5, 2016 Author Report Share Posted October 5, 2016 Not sure what the spec is for end play but it's definitely too far out on the right side.. the left side moves a little but nothing that really concderns me. I'll take a look into those C-clips and probably order them before I open the pumpkin up The main pin running through the middle of the carrier is the only thing I know of that limits the axles from moving inward and the C-clips keep the axles from moving outward. If I remember correctly, the 8.8 axle bearings run directly on the axle surface and do not have an inner bearing race or retaining ring that are pressed on. The only part that is pressed on is the ABS ring. I believe some of the aftermarket C-clip 8.8 axles (Moser, Strange) are hardened in this bearing contact area for greater longevity and also are larger diameter (more robust) where the oem 8.8 axles narrow down. There is a range for the axle end play, for some reason I am thinking .125 maximum but that may be wrong? R Quote Link to comment Share on other sites More sharing options...
wenger828 Posted July 9, 2017 Author Report Share Posted July 9, 2017 Turns out, my axle was slightly bent (on right side) from an accident that happened a few years ago (minor accident but i guess enough to bend the axle). It was putting a lot of pressure on the inboard side of axle shaft, mushroomed the end of the axle. Funny thing was, it drove fine and i got used to it, when i replaced the axle and had LSD again though, WOW, so much snappier thhrough turns Quote Link to comment Share on other sites More sharing options...
tmoss Posted July 14, 2017 Report Share Posted July 14, 2017 how did they find the bent axle? do a runout on the shaft in or out of the diff? Quote Link to comment Share on other sites More sharing options...
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