I had my rear differential upgraded and an AMS billet aluminum rear diff mount installed and when I decelerate the rear makes the loudest sound I've ever heard. Has anyone else experienced this?

 

I had a loud noise from the rear diff area a while back. Turned out to be a failing fuel pump (walbro). I hope its not your brand new diff.

 

You gotta be more descriptive of the sound, but heres what I think:

Its probably a vibration. Thats why from the factory they use a rubber bushing so it can absorb those vibrations. Correct me if I'm wrong somebody?

 

Aluminum vs rubber bushings; terrible idea for a street car. Get some polyurethane ones instead.

 

I sounds like drone times 10. Very irritating! I hope it's just the AMS billet piece that is causing the noise.

 

Then I bet that's exactly what it is.

Taken from AMS's website, under the product notes:

 

dammmmmmmmmmmmmmmmm