i meant it wouldnt hold in a 4wd doing boosted launches at 1000hp. not sure how long it will hold in a 2wd,but from what i understand,slicks arnt as hard n the output shaft...

 

A 2wd does not put the strain on the output shaft because it is a straight shot. On a 4wd, the extra strain from putting power to the transfer case will snap it right off.

I'm not 100% on this, I understand it, but can't really explain it. I believe that the output on 2wd's also output power from the side of the shaft, also.