Dude.... that is pretty sweet! sounds AWESOME!

 

http://www.truckinweb.com/tech/1007t.../photo_18.html

not my truck but if you look on the right side vertically there is a 40A / 30A / 40A (grn/pnk/grn) well if you pull the bottom green 40A you can do all the donuts or spin tires as much as you want. this is part of the ABS and you do get lights on your dash to pop up. the 30A above it when pulled doesn't allow you to engage 4wd and other then that i don't know if it is a fix or not. the 40A still allows 4wd operation. i might rig up a switch the is inline with that fuse so i can still have that safety technology for everyday driving but flick the switch and its good to go for some fun or deep snow / mud bogging / snow drifting, whatever it may be