Just ordered some rear wishbone bushes from GM at £16 +vat each. I would of been better off leaving the original rear bushes when i fitted the front polys instead of fitting the cheap first line crap that i could get my hands on at the time.
10 left at the main warehouse apparently..
All the rest of the front suspension checks out good along with the camber setting so hopefully new quality bushes will sort out my vehicles darting on brake application. (Had a brake test done today which checked out ok)
I recon having polys on the front must put a bit more pressure on the rear ones..
That is a school of thought, but genuine gm parts are not necessarily of the same quality as the factory fitted items... Also, those who fit poly bushes tend to enjoy driving their cars in a more spirited manner which will in turn put more load on the suspension as a whole...
It's not the fitting of the popybushes to blame for this, but rather that they make the car feel a bit more responsive and therefore nicer to drive a bit harder... Drive a non poly car the same way and the rear bushes will most likely fail in the same time frame imho...