here's another site that has one

http://www.transmissioncenter.net/4L60E.htm

I need to buy one for our 4L65E so I would be interested in hearing what you find. All that I have found so far are pricey. The trans setting is something that you initally set up, find a setting you like, and then never adjust again until something screws up.......

For the aftermarket fuel injection controllers, only Big Stuff has trans control built into it. We are using a Mercury Marine computer so we gotta have a separate trans control....ugh.

By the way, you need a throttle position sensor for the trans controller and a digital speed input. Chevy has three (I think) pulse formats (pulses per revolution). As I remember, the web sit above sells pulse generators if your trans doesnt have one......

You should verify that the controller you choose has a selectable pulse rate so you can use your generator.....they all probably are software selectable.

mike in tucson