GMC 100 Speedometer Wiring and Senders

Testing a 2 or 3 wire speed sensor sounds difficult, but these videos show that it actually is quite easy!

Pat talks about our GPS module that generates a speed signal to your electronic speedometer.

Here are some handy tips for finding the right fuel level gauge and sending unit for your classic car or truck.

Learn about the wiring of GM HEI Ignition Distributors with our diagrams and guide. Ensure you are getting the best performance out of your ignition system.

Learn how to install and wire a digital tachometer. Speedway Motors covers the entire process with our installation of the Acewell 1100 Digital Tachometer.

Learn how to replace a fuel sending unit. Our fuel gauge sending unit guide and installation video covers all you need to match your fuel sender and gauge.

This Chevelle project gets rewired with a Speedway Motors 22 Circuit wiring kit. Follow along as Jeff guides you through this application, starting with a good mounting location for the fuse box. Learn more on continuity, grounding and relays.

Wiring of your race car or hot rod can be completed at home with these helpful automotive 12 V wiring tips.

Speedway Motors employee Pat O. takes some time to discuss the Fuel Gauge Interface Module that allows you to use any gauge set with almost any fuel level sending unit.

Watch our Steering Column Wiring Guide video for useful tips on wiring your new steering column for your vehicle. Ididit takes you through the wiring process.