Well thw weather is beautiful today, so I took it for a spin.  First thing I noticed, no more one wheel spin when leaving the neighborhood.  Second thing I noticed, with the R/T snubber mount, I get a little more noise in the cabin.  It is to be expected as I now have the diff "riding" on poly all around.  I did notice a very slight gear whine on drive...probably normal gear noise amplified by the poly snubber.  So far I love it