So i just got done installing richmond 4:10s in my TA. They whine at low rpms, but when you turn right, either a sharp turn or even going around a curve, they make this god-awful-ear-piercing-howling noise. What could be the cause of this? I installed new bearings (except axle bearings) and used asolid pinion spacer if that makes any difference. thanks

 

not sure if this is a common problem when turning , but my buddies 4.10s do this to

high gears like that do whine alot tho

 

Did you set the backlash correctly? This would be my first guess, and might turn into a bigger problem than just a high pitched whine =/

 

i believe the backlash is correct- it was about .008 and it called for .010 +/- .004 . im going to tear it apart today and reset everything. i just wasn't sure why it would make the real loud noise when just turning right- i thought maybe that had to do with something specific and someone would know

 

Isn't turning noise caused by not having added friction modifier?

 

That was going to be my next guess. When you filled up the oil, did you add the Posi fluid?

 

problem solved. i took the cover off the rear this morning and noticed that there was a little play left and right. i reshimmed the carrier bearings to fix the slop, rechecked the backlash, (set at .006) and everything is a- ok