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Inline Vehicle Speed Sensor Fabrication
This guide shows how to install a Ford Vehicle Speed Sensor (VSS) in the speedometer cable.

click any picture for a larger image
001.jpg
Take the gear off the input end of the VSS
003.jpg
Get some brass square tubing from a hobby shop
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Cut off about an inch long piece of tubing.
010.jpg
Measure Stickout on transmission end, top end still connected to speedometer.
008.jpg
Mark the place the VSS will go, any strait part of the Speedo Cable. Remove cable assembly.
009.jpg
Measure the Stickout on top end, with trans end set at measured stickout.
011.jpg
Cut the cable, inner and outer at once with a cutoff disk
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Clean the cut end of the inner shaft.
013.jpg
Use brass brazing rod, flux, and a propane torch
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Braze the end of the inner shaft so Brass wicks into the spiral
015.jpg
Grind the brass part square.
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Grind it to fit in the square tubing. It should go in 1/2 inch. If it doesn't go in far enough, it can pull out if the shaft slides down into the drive.
017.jpg
Trim back the sheath so with the above stickout, the new brass end is exposed.
018.jpg
Cut a piece of rubber tubing to cover the joint.
018.jpg
put small washers on each end of the tubing to keep the corners from wearing on the cable or VSS
019.jpg
Bend some sheetmetal around the tubing as a shield and stiffener. Use hose clamps to hold it all together.
020.jpg
Do the same for the output side of the VSS. an inner and outer rubber hose is needed.
021.jpg
Final Assembly ready for installation. Make sure it turns easily.

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