I was going to buy yank 3000. I'm not sure know after speaking to different trany shops. I have stock motor with a cam eng. xr269hr-Compcam 216/220- .525/.532. the cam good between 1300 to 6300rpm range. The shops were recommending 22k to 25k stall. They were say 3k was way to big unless you were going to drag all the time. Having stall that big the truck would get bad gas mileage and rev-up above 2k v before it started moving. I've never had a 3k stall before. My 67chevy has 26k to 28k stall with a 383 stroker and that thing like rocket and break the tires in any gear. So guys let me know what you guy thinks.