1972 Chevy K10 Headlight Wiring Harnesses

How to plan and execute a LS swap into any 1973-1987 Chevy/GMC K10 pickup truck.

In this Tech Tip, John answers a customer question about the Speedway 12 Circuit Wiring Harness.

Check out this headlight wiring and taillight wiring diagram.

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

From a mild leveling to slammed and “in the weeds” there are several options to lowering a C10. We discuss the options in our ’67-’72 C10 lowering guide.

Old trucks are just meant to have manual transmissions. They're made even better with a modern overdrive like a Tremec TKX. Watch our C10 manual transmission conversion on an LS-swapped '68 to see just how easy it is to row your own gears,

Whether you are looking to change the look of your truck, get rid of your tired rusty springs, or upgrade the ride quality of your truck, Speedway Motors has you covered with stock height and lowered spring options.

In this Tech Talk episode, we detail the install of a C10 G-Comp Rear Suspension kit. This kit uses truck arms like the original, but adds coilovers and plenty of adjustment options.

How to lower a C10 Chevy truck with lowering coil springs and install a front end rebuild kit. Upgrade your broken, rusty, or saggy suspension with our guide.