So I have my rear end totally apart putting in the power brute LSD and since I'm at this point I figured I might wanna chance out the ring gear while I'm in there. Now my daily driver is a miata that has 4.30's in the rear of it and it seems fine. Just a little high in th rpm on the highway but it puts you right in the sweet spot of the power band. Just looking for someone else that has done the swap and what their thoughts are