[Casaba]

I tried a crude test but will have to make up a better wiring harness. Per the AC delco manuals on both systems, the older vacuum system used the 2k square wave pulse and the servo-motor uses 4k sine wave and the PCM converts it to 4k square so it's twice he signal.

Theoretically what I wonder is if the module will simply match pulses or if it in fact would think I'm running 12MPH at the minimum 25MPH to activate the cruise.

I will play around with it. The reason for wanting the newer is because I have no room for the vacuum servo and can mount the cable system on the wheel well. I know there are cable set ups for the vacuum as well but not sure what years and car to look for a donor cable setup with bracket