To my knowledge, there is only one TransGo kit for the 4L60E. You should be able to find it on almost anyone of our speed shop sponser websites.

I believe what Screw-Rice is probably talking about is the B&M ShiftPlus improver.

Joe

 

i believe GM put a small button for "performance shifting" in some of the 93-95 firebirds, maybe the formula's, all it did was raise line pressure similar to that B&M unit to firm up your shifts. its argued both ways whether or not it is bad... i personally dont like the idea of it.

 

Some T/As got a performance button which pushed transmission line pressure up. Limited production option.

 

Hmm, didn't know that. Thanks guys. Any idea how limited of an option it really was and what years?

Joe

 

i thought once before when i was looking at them (the transgo kits) there was on that just made firmer shifts, and then there was another one that allowed you to hold your car in a certain gear. (kind of like a manumatic thing?) i very well could be wrong though.

 

Unfortunately I dont follow the Pontiac side of the F-cars. LOL

 

mine has one its a 94 formula its kind of cool just hit the switch and neck snapping shifting. and on long trips with the button off smooth shifts. i have never seen another trans am or formula with one. i have seen a similar looking button right in front of the cupholder that says second gear start on the v6's .but my formula is a little diffrent anyway from the dealer someone ordered it with all kinds of extra stuff.and now its mine muuhahaha