ZL1 diff bushingsl
 

Any of the ZL1 guys replace the diff bushings or just keep them stock?

I am going to try the subframe bushings first. watch the PFADT video's there is more flex in the subrame than the diff bushing. there is flex in both though.

I am worried If I replace both it will get a bad on the NHV side of things.

I have the solid sub frame bushings, they don't increase NVH trust me on that. I'm replacing my stock diff/driveline with ZL1 parts and have the diff already, just want to know if any of you guys replace the diff bushings?

I have not seen anyone do it yet. I know phadt messed around with the durometers on the set they offer do some some harmoic issues. they used to have two different sets and now they only offer one set that has a mixed bag of the two different durometers.

The one negative I have heard is if your gear setup happens to be off you can get some gear whine that is isolated by the sloppy factory bushings.

watching those video's though performance wise it is a no brainer but there is a risk of increased noise and vibration. the guys a phadt told me if everthing on your car is setup right everbody loves them. if you happen to have a diff that whines a bit some people won't like them.