I just finished my On-Board Air project complete with a rear air locker. It was actually easier than I had thought it would be. So far my air locker seems to work good. Since I originally had a limited slip, it does handle differently. The tires spin quicker with it off thanks to the open differential. But instead of getting real squirelly like it used to, it just spins. I will be putting the air locker to the test shortly and when I do I will let you guys know how I like it.