Well does anyone know a good company thats makes strong u joints just put a ts chip in my truck and took it out for the first time a week ago hit boost and boom.replaced it with a new one from napa strongest one they had and today i cranked the chip up and got into boost and boom again.the caps explode the drivshaft angle is perfect the truck has a 6 inch lift and 36 inch super swampers.the u joints i use have to be custom ordered since i have a diff rear end in it out of a 86 f350.and the caps have to be smaller on the rear end and still stock driveshaft