Quote Originally Posted by jkelley View Post
For the speed signal, tap into the VS wire near where it goes into the ECM. It's the white wire w/black stripe (#A10) on the Black connector. Cant determine the "pluses per mile", but it's somewhere in the neighborhood of 70,000 to 75,000. The VS signal is picked up off of the counter shaft 4th gear, which has 27 teeth and the engine turns 3250 @ 60 mph. 27 X 3250 = 87750. If you knew the gear reduction between the engine crankshaft & the counter shaft, the exact pulses per mile could be calculated.

As a disclaimer: Someone way smarter then I figured this out...........
I remember us digging for that wire when you did my cruise control.
By the way, still working with out a hitch. Thanks one more, time.
Has really made my trips out west soooo much easier!!!
shortleg Dave