OnyxCobra Posted May 13, 2013 Report Share Posted May 13, 2013 (edited) In my dismantling haste on Saturday I didn't check the pinion bearing preload before removing the pinion flange nut, did I screw myself? Edited May 13, 2013 by OnyxCobra Link to comment Share on other sites More sharing options...
PRPVinyl Posted May 13, 2013 Report Share Posted May 13, 2013 No, Every rear end I have done or seen done calls for 25 inch/pounds of preload on the pinion nutMatt Link to comment Share on other sites More sharing options...
OnyxCobra Posted May 17, 2013 Author Report Share Posted May 17, 2013 hmm, so according to my manual it says the pinion flange nut takes 140 lbs of torque, so would you suggest torquing that to 140 and then go up from there as I check preload? Am I reading this right, the preload is the tq it takes to spin the pinion gear? Link to comment Share on other sites More sharing options...
Det_Riot Posted May 17, 2013 Report Share Posted May 17, 2013 o_0 your guess is as good as mine lol I got no idea about these kinda things. Lemme ask my buddy who builds rear ends for a living Link to comment Share on other sites More sharing options...
PRPVinyl Posted May 17, 2013 Report Share Posted May 17, 2013 Yes the preload is the force required to turn just the pinion gear Link to comment Share on other sites More sharing options...
F8L GT Posted May 17, 2013 Report Share Posted May 17, 2013 Just make sure you don't tighten too much and crush the sleeve even more Link to comment Share on other sites More sharing options...
mustangcobratim Posted May 17, 2013 Report Share Posted May 17, 2013 Ya that is no problem. Like what is said tighten it in stages with hand tools . you will want to check rotating torque with a dial torque wrench. I would say 12-15 nm since you have used bearings . I do this stuff all the time at work . I work at american axle in product validation. That should do it! Link to comment Share on other sites More sharing options...
Det_Riot Posted May 17, 2013 Report Share Posted May 17, 2013 ^Thanks Tim! And welcome aboard =p Link to comment Share on other sites More sharing options...
1997cobra Posted May 17, 2013 Report Share Posted May 17, 2013 Tim is here <3! Link to comment Share on other sites More sharing options...
OnyxCobra Posted May 17, 2013 Author Report Share Posted May 17, 2013 I put the flange back on with the impact so i hope i didn't over tighten it. So 140 ft-lbs sounds right for the pinion flange nut? My rear end had a little bit of slack in it and would sometimes make a humming sound so I think I may actually need a little more tightness.and nobody I know has an in-lb torque wrench, balls. Link to comment Share on other sites More sharing options...
mustangcobratim Posted May 17, 2013 Report Share Posted May 17, 2013 I put the flange back on with the impact so i hope i didn't over tighten it. So 140 ft-lbs sounds right for the pinion flange nut? My rear end had a little bit of slack in it and would sometimes make a humming sound so I think I may actually need a little more tightness.and nobody I know has an in-lb torque wrench, balls.You don't want to use a impact cause you risk crushing the crush collar more then you will never get the proper rotating torque. You want to bring it up to the collar then tighten as necessary to achieve the proper rotating torque. Or you can use a inch pound beam style torque wrench to chec k rotating torqueHope this helps Link to comment Share on other sites More sharing options...
OnyxCobra Posted May 17, 2013 Author Report Share Posted May 17, 2013 (edited) but what i'm saying is the torque spec for the pinion flange nut is 140 lbs, so it has to be at least that much correct? I don't think i'm going to be able to get a torque wrench at least in the next couple days...I would say 12-15 nm since you have used bearings for what part exactly? that's 106-135 ft-lbs. Edited May 17, 2013 by OnyxCobra Link to comment Share on other sites More sharing options...
