amx1397 and i have done it in my srt6 and it runs great ,we can supply a turnkey setup that bolts into any crossfire srt or na with out any modification to the car . it can be returned to stock by putting back original parts there is a limited supply of these new differentials after that we have to use used ones.we also supply a modified tcm so no limp mode ,we are working on a wavetrack for this setup i have over 1000 miles with no problems .contact amx1397 if your interested it makes a big difference in acceleration. there also other ratios available setup 3.64 and 2.87.