I recently purchased a 2011 SRT8 Challenger with the 392 hemi and 6 speed transmission. I noticed a a leak in the rear axle housing. After inspection I found that the axle housing is cracked around a bolt hole. That appears to be where the leak is coming from. Also it is a open differential! Since I cant find a replacement case half I was wondering if swapping the rear axle with a used one out of a hellcat. Will it fit without modification? Thanks in advance.