AC Hex Keys

5 easy steps to select and install the proper lug nuts for your vehicle's aftermarket wheels. This lug nut guide covers all you need, including torque specs.

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.

Steve replaces the factory GM 8.5" 10-bolt rear end on his '76 Chevrolet Laguna S3 with a GM 10 & 12 bolt bolt-on rear disc brake kit.

Learn the proper steps in upgrading your air cleaner assembly to ensure clean air, allowing your engine to more easily make the power that it should.

In this Tech Tip, John offers up a couple solutions to a customer on the hunt for a coil over kit for his 2-door Model A.

In this Tech Tip, John answers a customer question about finding the right axle length for his 1931 Model A.

Learn how to assemble the front axle of a sprint car. See what tools are needed for assembly including an angle finder gauge tool and king pin reamer.

In this Tech Tip, John responds to a customer request for our thoughts on an axle kit for his project.

Some basic info on the various exhaust options carried by Speedway Motors.

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.