melting plastic
Hi,
i have been thinking about this 'melting' the rear ride height adjusters and can only think that the rear axle is very tight.
If you are running the Euro car (std corally wheels), then lightly sand the wheel clips on the back axle with some very fine 'wet n dry' sand paper...
You should only allow for a very small amount of sideways movement in the back axle.
The 'non drive' side clip can make the axle run very tight against the bearings thus causing extra friction and hence increase heat build up.
Other than that, any muck or contamination may cause the bearing to seize up and then that would do the same thing.
Note...
If you sand the wheel clip on the 'diff side' this will allow the diff to be run slightly looser without binding on the clip, and may help you too.
Hope this helps.
pete