Ok since I posted the previous question about a non air rear locker and it seems as though such animal does not exist. I dont want to Lock the differential, I think i am going to Opt for the Calmini Front LSD. I have the stock LSD in the back and I figure this way i wont break anything by locking, there will still be allowable slip. My question is, does anyone here have this on thier truck with only an LSD in the back and if so was it worth the money, just for the part, I can install it myself, but 450 is alot of green.... THanks