21-55050 Auto Transmission Controller Us Shift 4r70w

Description

This is a stand alone controller for a 4R70W transmission and it works great. Easy to wire, easy to adjust your trans on the fly or using a laptop.

Comes with the program loaded on the computer and comes with a cd so you can make changes using your laptop or your desktop computer.

In order to get you the correct wire harness we will need to know which plugs you have.

before you have your transmission rebuilt call us for important build info to make sure this controller will work for you.