Plymouth Duster 4L80E Wiring Harness and Components

A guide on how to install a universal wiring harness in a car. Read tips on properly wiring taillights, headlights, gauges, ignition switch, steering column and more.

A real-world guide to 4L60 transmission specs, strength, and swap tips.

Read how to wire a lightning sprint engine. This detailed account of how to successfully wire an engine will ensure a smooth installation.

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 just added some exciting new options to our line of racing harnesses.

Check out this headlight wiring and taillight wiring diagram.

Hooker headers are installed in a 1967 Pontiac Firebird for increased power and a boost in performance. See how to work through fitment of the steering box, clutch Z bar and starter.

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

Rebuilding a carburetor or renewing it is not as hard or intimidating as it looks. This article will guide you through the steps using a Holley rebuild kit.