Standard Anti-Roll Bar Sizes.
 

As the title, I want to order some poly bushes for my front and rear roll bars but i'm unsure about what size to get, I have measured them with digital vernier callipers, front comes out at 19.5 and rear 17.7, so obviously I don't want to be putting 20mm in the front and 18mm in the rear if it's going to mean they are slopping about, which would completely defeat the object of the exercise.

So anyone done this and what sizes did you go for?

Car is an 54 Blob WRX.

Anyone?

Best speaking with Alyn but I would imagine a 20mm poly for the front and a 18mm for the rear would do the trick :)

just replaced mine,front and rear 20mm so ordered some whiteline bushes 20mm they are a tight fit.I believe the hole is slightly small than the rollbar size but don't quote me on that lol