1987 GMC R3500 Timing Components

Decode, ID, and upgrade your GM 12-bolt rear end. Learn axle specs, gear ratios, and best performance parts upgrades.

Rebuilding an engine? Stay organized by using a valvetrain rocker arm organizer tray while disassembling the valvetrain components. Learn some tips on why you shouldn't mix up lifters if you intend on using them again.

Learn about finding the correct beadlock rings, lug-nut taper, wheel spacers, mud covers, and valve stems. This components are critical for safety.

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.

What happens when you advance or retard a camshaft? In this tech article, we explain the pros and cons of installing your cam straight up, advancing or retarding.

Jason Martin is in the pits at 305 Racesaver Nationals talking to racers about topics they would like more information on. Follow along as Jason Martin gives advice on how to set your birdcage.

Learn how to set initial timing on the Chevy 350 SBC and the Ford 302. Our guide covers step by step instructions so you can set timing on your engine.

Piston rings may not be the most exciting part of an engine build, but knowing how to clock piston rings and how to install rings on a piston is critical to your engine performing properly.

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

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.