I've said it before, in my opinion it's always a great thing to have, but you'll never take full advantage of it on a stock tranny. My thoughts are that you shouldn't NEED one until you build your tranny. Because it's plenty easy to grenade your tranny without one.
Alight thanks for the info, yeah the truck feels slugish when i shift into fifth...Yesterday a stock lbz 4wd with flaskpack chip set on performance 6sp lept upwith me pretty good, i we called it a tie. I need ya's opinion, i have a lmm MP and im putting a airdog lift pump on. will the MP help? and what do i need to install it?