You 31 spline guys. Are your rear ends noisy?

[MustangLife]

I have a frpp 31 spline posi with 4.10's and its noisy. Its not a gear whine. but it started after drag strip abuse. Its getting on my nerves, but i would hate to have the posi torn down and nothing to be wrong with it. If there all noisy can a aluminum driveshaft quiet it down. So are yours quiet or noisy.

Josh

 

[damacman]

I have an auburn 31 spline limited slip and strange 31 spline axles with 4.10s and the FRPP aluminum driveshaft. It's whisper quiet. Since I blew up my stock rear and got this stuff installed, I haven't been back to the track though. Not gonna' go until I get the torque boxes and axle tubes welded up for fear of ripping that up next.