Quote:
Originally Posted by Hujan
I had solid aluminum subframe and delrin diff bushings and had significant (for me) whine. I swapped the delrin diff bushings out for purple PowerFlex polys and the diff whine is basically back to stock levels, but the rear end still feels rock solid.
For max performance, aluminum subframe and either delrin or aluminum diff is probably your best bet. But for keeping NVH to a minimum while still vastly improving rear end stability, aluminum subframe and PowerFlex purple is the ticket.
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I have aluminum subframe bushings and Powerflex purp diff bushings and I get a lot more whine and whir than stock. Do you have DCT or 6MT?