Hey guys i just wanted to know if anyone knew the speeds that the hemi shifts at thruogh the gears? and also is there anyway of finding out whether i have the locking diff or not? i really wanna know because i bought the truck as a dealer demo and never really found out. and it would really kinda suck if i have a one tire fryer!! tried power braking but only got a chirp. i have heavy rims and 305's