Toyota installed gear driven transfer cases in 4 cylinder pickups and 4Runners from 1979 through 1995.
Speed sensors were not used as standard equipment in these rigs until about 1992. Speed sensors from
chain driven t-cases don't fit gear driven t-cases. This means that swapping out a chain driven case in favor
of a gear driven unit, in a 1992 or newer Toyota, will require a speed sensor.
The factory Toyota sensor that fits the gear driven cases can be purchased from many sources. However,
Inchworm Gear has developed a far more economical solution with our Speed Sensor Adapter. The adapter
attaches to the speedometer cable drive of the gear driven transfer case and allows you to utilize the internal
components of the speed sensor from your original chain driven t-case. This adapter is machined from 6061
billet aluminum with CNC milling machines and can be purchased as a kit. All that is needed is the kit
with the instructions, a chain driven T-Case sensor and 15 minutes of your time.
160-4006 – Speed Sensor Adapter
INSTRUCTIONS FOUND HERE:
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