Hey Texas Tom -- what year is your van and what year is your rear axle? Are you sure you are modifying the signal "out" of the ABS module and not "into" the ABS module? Not trying to be rude -- just curious how that works since it seems the role of the ABS module is to turn pulses/ac voltage into DC voltage that the ECU can use to measure wheel speed -- but I cannot find detailed information about this on my service manual.
I'd love to use the existing tone ring/sensor -- but Ford moved to active-style ABS sensors for the later year axles (probably when they added 4 wheel abs). Mikerson did some research to try and figure out if there is a passive sensor that can fit into the existing hole -- but hasn't had any luck of yet (I think).
That certainly would be the best way to do it, I think:
https://www.sportsmobileforum.com/fo...tml#post262303
The "easiest" solution is to simply add the 120 tooth tone ring to the carrier on the axle and install the sensor back there (mounting it might be difficult) -- although given how the e-locker works -- some F-series guys say that when you turn on the e-locker it fudges up the ABS/speed sensor (the rear sensor on the F-Series controls the speedo even with the 4R100) -- which isn't ideal either.
Appreciate your feedback -- I'll report back what I hear from Abbott/Dakota. I imagine they have a very deep understanding of these systems.
We're all in this together!!