mine is a transgo. one kit does 2 tranny's one hopped up and one towing if you use the parts just right.

hmm... instructions tell for which?

yep there is like 3 levels included in one kit

i see two types on ebay. I wonder if getting the more complete kit is even worth it, for the extra little bits of springs and what ends up not being used. An extra $100...

Summit has the transgo reprogramming kit for 109.00. I just ordered mine. Call and speak with a rep though so you don't get the 3 week shipping(cheapest).