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What he said just above. I've installed several Rostra brand units and they've worked flawlessly. Google Rostra and see the various models. Sometimes it pays to have new stuff instead of working around worn out used stuff.
I'm looking at all new. Even if I have to buy nos and use the factory setup, however I have no clutch safety and a hackjob wiring harness(it's been a work in progress since day two) and I can find stuff all the way back to obd2 but nothing that's vacuum only operated or something along those lines.
I don't have a computer and I don't want one. I want my truck as simple as possible, however I'll gladly whatever neatly and properly if it means I get cruise.
Here are a couple more photos of how I installed the signal generator.
The end of the speedo cable in the truck was too big to fit into the unit. The left cable in the photo is still attached to the truck, the right cable-end came from the donor truck. I worked it down with a hand-file until it fit nicely. I filled the gap with silicone (not in the pics) and secured it with a zap-strap.
I couldn't use the speedo cable from the donor truck because it came from a 2wd reg cab, and it wasn't long enough for my 4wd supercab. Modifying my speedo cable-end was the perfect solution.
Also, the plastic gear was different between the auto and manual trans, but they just swapped out.
There's also a photo of the wiring loop for the clutch switch which is by the steering column/gas-pedal lever.
Old blue, how did you do the wiring for the later style signal generator. Looking at adding cruise to my 85 and my transfercase has that newer style signal generator.
