Originally Posted by
nova2015
I have a little issue with a B4.2, in the ball diff. Running in 2WD stock, and the diff was coming loose, usually after only around a minute of running. Replaced the locking nut with a new one (#6575) however the result is still the same. Surface is regular, untreated dirt track, slipper set so slip can be heard for around 2 seconds on a full throttle launch.
Is it possible the diff needs to be fitted the other way around? I'm thinking it may be unwinding itself, though the manual does not appear to show anything in this regard. The way it is currently fitted, the adjustment screw is accessed from the right hand side.
I would replace the nut, spring and thrust assembly. It doesn't matter which way its installed, if it did it would loosen one way and tighten the other. Also make sure to break it in properly, there should be a sticky at the top of the electric off-road thread with a video on how to.
Make sure to install the screw and nut in the proper diff halves