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Originally Posted by cvc 22349a
Do you know if the M3 diff bushings fit non-m cars?
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A quick look at both cars on a lift at the same time seems like they would fit. It isn't an expensive bushing, I'll fall on the grenade and order one tomorrow. Definitely the rear diff bushing in the non M cars are weak, I can't really tell a huge difference in the front 2 bushings. They do not require lowering the subframe. I'm not sure if the diff moving around would cause this kind of situation or not. It doesn't change the suspension geometry, but maybe it changes how the power is distributed between the rear wheels based on an angle change of the axle shafts?
The powerflex diagram shown #15 is what I want to swap. #14 is a ball joint, so upgrading that isn't necessary. Really expensive to replace from powerflex for some reason too! The rogue/hp toe arms did make a nice difference, I was hoping it fixed the issue 100%, but I'd give it a 80-90% correction in my car. Even supercharged M3s don't do this, so I don't think it's a side effect of power output....