I have an 3.36 geared open 10 bolt in the coupe right now. I have a fresh 3 series posi-carrier that I plan to drop in. I'm using the same gears from the rear now. the 3.36.My question is do I still need to have the rear dialed in even though Im using the same ring and pinion but a different carrier or is this only done with new ring gear and pinion? thanks guys.