You dont have to run a modified rear axle, there are lots of people who are running a non modified rear end, as i said befor you just have to have a CV drive shaft for the rear.
*flamesuit on*
Sure he doesn't. As long as he likes driveline vibe and quickly eroding driveshaft joints, especially a CV or double carden type.
Running a center diff axle in a truck with an offset T-case output is fubar and technically wrong. No CV or DC in the world will compenate for the compound axles. Period. Arguing this point any other way only shines on the lack of engineering concepts on one's part.
Sure, folks have done it and claim it's the best damn thing since Wonder came sliced. But I've also seen folks use 8" shackles, claim Z-bars cure bumpsteer, make driveline spacers out of poly, and use treated wood as axle lift blocks. Everyone of them claims it worked, and they were "correct". But work correctly is a matter of debate.
The correct way is to build, buy or steal a modified off-set Toy rear axle. Otherwise, sell the sammy and use the axles on a Kicker. At least that way the axles have the correct driveline parameters.
Now, can we all put this urban myth to bed?
*flamesuit off*