I went with the ATS Triple-Lok full Stage-IV rebuild in April and I am HAPPY!
It makes the truck! They are in Wheat Ridge, Co. , which is near Denver.
I've put over 12,000 miles on my ATS since April, most of it in the city, and it is GREAT! I love the way lock-up works, I know it will NEVER slip. There is one entrance where I get onto the freeway, and before my ATS, there was a certain marker post, and I could never get faster than 35 m. p. h. by the time I hit that marker post, now I am hitting 52 m. p. h. at that same marker post!
Shifting locked is awesome!
Goerend's also is a great trans shop, they are in Iowa.