I have recently purchased a whiteline rear sway bar for my Rt142 Avante Corona. It has a live axle and factory sway bar. The whiteline sway bar seems to be the correct shape but the bushes that go on the diff are too small for the bracket/cup. The outside diameter is too small but the inside is ok to suit the 18mm sway bar. I called whiteline to confirm that I had received the correct bush and they tell me it is the right one. The whiteline bar is listed to suit an St141.

My question is, does the st141 have the same sway bar as an rt142 and rt142 avante? I think I read somewhere that the Avante has a thicker front sway bar but im not sure the rear is thicker. Do the coronas use the same bush bracket/cup on the diff??