Thanks for the extra pictures on the sensor setup! That's pretty much the exact same sensor I have, so nice to know there is some kind of way to make it work. I think my biggest challenge at the moment is figuring out the brake setup. From what I can find, it looks like the front drum brakes didn't include the wheel bearings on the E bodies, but I'm having a hard time finding pictures of a front drum setup with the drum off. My hope would be to use the drum hub and just find a different rotor that could fit over the top of it that would still work with the stock calipers I have, but that might be a tall ask and a lot of parts book searching. I'm still not even sure the front drum hub thing really exists at this point and what mods might need to be done on it to make it fit.
I was doing a little math with my tire sizes and the pulse counts as well and it's really probably not as bad as I think it would be. My tire size comes out to something like 3780 pulses per mile if I have 5 pulses per revolution. Going all the way down to 1 mph would still get me roughly 1 pulse per second, which isn't amazing, but would probably still work okay. Normally I'd say you would never really care about resolution at that low of a speed anyway, but with traction/launch control I think that's the one exception since you are leaving from a standstill. You would probably still get up to a speed that would give you several counts in a second fairly quickly, but hard to say how it might affect the tuning. The difference between 1 and 2 pulses at a low speed if you're right on the edge of one wheel stud or between them when you first launch would be my main concern and where the resolution really matters. I think my tire circumference was something like 80" roughly, so divide that by 5 and you'd have 16" of forward travel before you read the next pulse. I'm not sure if that's a problem or not. I think it would be a bigger problem for launch control than traction control though. If you're already rolling along and stand on it, I think it would be fine to catch wheelspin, but I'm not sure I'm convinced it would get you off the line very well.
