This SpeedHut GPS to speedometer cable drive unit is the easiest, cleanest and quickest way to get your transmission swap chassis with a mechanical/cable drive speedo up and working without issue. This unit is what we recommend for any older car or truck that does not use a electronic VSS where you want to retain the factory speedo cable drive. This unit can be installed under the dash and uses a GPS antenna to pick up real time speed and translate it to revolutions in the cable drive.
This is a recommended part for the MK3 supra, Z20 soarer, and other late model import chassis that utilize a cable drive. For the import applications like Toyota you will be swapping the cable provided into the factory toyota cable sleeve to make a "hybrid" cable.
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Speedhut PART/SKU Number: A-304
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No calibration is necessary! Plug-n-Play! SPEEDBOX™ Mechanical Drive Speedometer Box (mechanical drive cable included). The Speedhut SpeedBox is designed to operate a cable-driven mechanical speedometer using an electric speed signal from GPS or modern transmission. The Box can be installed in the dash or under the hood.
Drive Output Thread is 7/8"-18
Drive Output Square is 0.112"
1000 turns per mile
Drive your Mechanical Speedometer using any of the following signals:
- GPS (automatically calibrates using the included GPS antenna)
- VSS
- CAN-Bus (j1979 Protocol)
Ships with:
- Speedometer Cable (I only stock the GM thread-on on style, but if you need something else let me know and i can get it)
- Wiring Harness
- GPS Antenna