Ford Model 40 TH400 Electrical, Lighting and Wiring Parts

Electrical wiring is one of those tasks that enthusiasts dread tackling on their own. We're here to tell you that wiring your project vehicle is something you can do with a little help from your friends at Speedway Motors!

Learn how to install a side detent shifter in a 1969 Chevy C10.

Learn how to wire dual electric radiator fans. Use our dual fan wiring diagram and guide to make sure you properly wire your fans to your thermostat.

Check out this headlight wiring and taillight wiring diagram.

Are you a collector of automotive signs? This is a DIY project where you will learn how to convert a hardwired sign to a plug in. Jess M. explains each step to get the job done!

In this Tech Tip, a returning customer asks for advice on wiring harnesses for his ’29 Ford roadster project.

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.

Speedway Motors employee Jess M. talks about the custom battery tray and cables she built for her '33 Ford.

Heath Petzoldt walks us through the process of putting different types of king pins together in this video. Follow along to boost your kingpin assembling confidence!

Are your gauges reading erratically or does your car run out of power at high rpm? It may be the cause of a bad ground. Speedway Motors can show you how to diagnose and fix the problem in no time at all!