First off proud new owner of 2012 JKU Rubicon. After having a local shop install the RC 2.5" BB stage 2 kit with shock adapters and exhaust spacers I now hear a clunk when taking off form a stand still. Any ideas? It's an automatic 4 door. Sound seems to be coming straight down from under the shifter. Thanks for the help!

 

I would check all the bolts. sound sounds like something may be loose.

 

Agreed......That was a pretty simple mod and should not be acting like that.

 

as mentioned, it's more than likely a loose bolt or two. being that you only hear it at take off, i would start looking at the front sway bar link and shocks first as they would be influenced by the anti-dive created from accelerating.

 

What they said.

 

Thanks guys for the quick responses. Found out the rattling was from my y pipe hitting the cross member. Anyways though it would be helpful to let others with 2012s that the exhaust spacers move the pipes really close to it so I installed a few washers to lower the cross member out of the way and now everything is perfect!