i have a question about an 09 r/t auto rear end how beafy is it.. i have gone 12.08 @113 w/1.80 60ft... how close am i to breaking this im making around somewhere in the 440 hp range
Your axles will be good to about 550-575 RWHP, beyond that with drag radials or slicks you will want to upgrade to a Getrag, or do better axles with you std rear. Also you do not have an LSD in your car as it sits, that would be a worthwhile upgrade as well...what are your longterm power goals?
Or you can do a complete Getrag system which comes with gears/LSD and new axles, this would also be a good option if you intend to do a different gear as there are 3.73 and 3.92 options here, or you can stay 3.06. Speedlogix | SpeedlogixStore.com