I think its your rear end that is making your tires spin when you turn. I could be wrong but mine do too and i know its not from too much power lol.

 

And it's only the stock 3.55 lol! Just wait till I put some better gears in there, hehe

 

yeah thats a aftermarket driveshaft he put in.. our trucks come stock with steel small driveshafts that looks like a long turd after a year because of the rust.. aluminum and fiberglass driveshaft can twist.. but they wont snap.. its weird how you can hit it with a hammer and break it but you can put 500 hp behind it and it wont break

 

Sweet Aftermarket parts on the vehicle when you buy it = GOOD, especially in my case I guess hehe