1977 GMC C25 Cooling Fan Control Modules

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.

How does a cooling system work? Why is your engine overheating? What parts should you be giving your attention to? This guide answers all your questions.

Follow this guide on how to mount a single electric puller fan in a '66 - '67 Chevelle. Learn tips on taking measurements and installing a rubber spacer to prevent the fan from rubbing.

Learn how to successfully upgrade the cooling system for a 400 small block Chevy. Read tips for installing a water pump and auxiliary coolant lines using fittings and fuel hoses.

See how to install 3" Ram Horn exhaust manifolds on a C/10 with a 406 engine. Learn some tips on welding steel tubing to a cast iron manifold and how they are modified to fit the truck.

The process of changing out a heater core in a 1957 Bel Air. This article discusses the assembly of parts and important tips to remember while changing out a heater core.

Learn how to assemble a Gotta Show transmission cooler line kit for common GM transmissions. Jeff shares some helpful tips on measuring and cutting the braided stainless steel hose for an easier installation.

Learn how to install an external Transmission Cooler, to help keep the temperature of your transmission consistent.

Steve takes us along as he centers the 525 manual steering gear he is using for his Laguna.

Read this guide on how to create a custom crankcase vent system for a Corvette using a Sure Seal air cleaner assembly kit. Learn how to keep pressure to a minimum and fabricate tubing to ensure a proper fit.