Help your Ford's two-speed axle shift between its ranges as intended with the Standard Ignition Two Speed Axle Shift Motor ASM100. This axle shift motor is a direct-fit replacement for the 1980-1985 Ford B-600, B-700, F-600, F-700 and F-800. See the "Vehicles it fits" section for engine-specific details.
The shift motor is the electric actuator that moves the axle's shift mechanism between its high and low ranges when the driver selects a range. If a worn or failed motor is why your axle won't change ranges, this unit is designed to take over that job.
- Permanent magnet OE design: built around a permanent-magnet motor that follows the original design.
- Sealed housing: the motor is enclosed in a sealed housing.
- Zinc die cast flange end case: the flange end case is zinc die cast.
- Quality control: as a global manufacturer, Standard Ignition maintains complete quality control through the whole manufacturing process.
Signs this part may need replacing: the axle doesn't change ranges when you select one, the axle stays stuck in high or low range, or the motor doesn't run when a shift is commanded. The range switch, wiring and axle shift components can cause the same symptoms, so diagnose the cause before replacing the motor.
Interchange: SAS1000 · SM100 · E4HZ4100A
This part cross-references / interchanges with the following part numbers:
SAS1000, SM100, E4HZ4100A
Frequently Asked Questions
What does a two speed axle shift motor do?
It is an electric motor that moves the axle's shift mechanism between the high and low ranges when the driver selects a range.
What are signs the axle shift motor may need replacing?
Warning signs include the axle not changing ranges, the axle staying stuck in one range, or a motor that doesn't run when a shift is commanded. Check the switch and wiring first.
Which vehicles does the ASM100 fit?
It is listed for the 1980-1985 Ford B-600, B-700, F-600, F-700 and F-800. See the "Vehicles it fits" section for engine-level details.
How is the ASM100 constructed?
It follows a permanent magnet OE design, with a sealed housing and a zinc die cast flange end case.
What part numbers does the ASM100 interchange with?
It interchanges with SAS1000, SM100 and E4HZ4100A.
