The SEN-01-128 is a direct replacement for the internal speed sensor found in late-model GM transmissions, reproducing the 128,000 pulse-per-mile sine wave signal from a stock 40-tooth reluctor ring so the factory ECM keeps receiving the input it expects. It is used when converting to an older-style transmission with a mechanical speedometer cable output.
Specifications:
- Function: high-frequency GM speed pulse generator
- Output: 128,000 pulse-per-mile sine wave signal
- Wiring: 3-wire, with removable weather-tight 10 ft cable
- Thread: female 7/8 in thread-on fitting
- Compatible transmissions: GM units with a mechanical speedometer cable outlet, including TH350, TH400, 700R4, 2004R
- Limitation: not intended for use with transmission shift computers or ABS systems
- Part Number: SEN-01-128
FAQ
What does the Dakota Digital SEN-01-128 do?
It recreates the 128,000 pulse-per-mile speed signal that late-model GM transmissions normally output internally, for use when a mechanical-cable transmission replaces the original unit.
What transmissions does the SEN-01-128 fit?
GM transmissions with a 7/8 in female thread-on mechanical speedometer cable outlet, including TH350, TH400, 700R4, and 2004R.
Can the SEN-01-128 be used with ABS or a shift computer?
No. It outputs a steady, non-calibrated 128,000 pulse-per-mile signal that is not intended for transmission shift computers or ABS systems.
What cable length does the SEN-01-128 include?
A removable, weather-tight 10 ft cable.
