BTW, I've been told consider 300hp and 35in tire the max for the Lock Right. If can get by and tolerate the herky jerky on turns and noise from a LockRight, then you can also tolerate a Detroit Locker which is pretty much considered the best of the industry standard for a Locker and it's only $100 or so more. So if you're buying it for a 10 or 12 bolt, and wanting to take advantage of the no resetting up of the ring and pinion, go for the LockRight (Or Consider the NO Slip) and save the $100 or so. If doing a 14b Full Float, you have to split the carrier even for a LockRight, so you're really not saving any labor and will have to set up the ring and pinion again anyway, so in that case, I'd spend the extra cash and get the Detroit Locker.