I have been exploring option for my 8.2" rear end for a while. One option I havent come upon until recently was a Powertrax unit. The rear end is a 2.73 gear (open of course) and bone stock. Will adding a powertrax to this be of any advantage? How will my stock internals/axles fair with this setup? The car is not raced just street driven, just looking for a lower cost way to get some extra grip and a second black strip! Thanks.