Willys Americar Thread Checkers

Learn about thread sizing with this easy to read thread size chart!

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.

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.

Pat shows that exhaust can make a difference on even your daily driver. Check out this video of Pat with the Hooker Muffler installed on his '03 Suburban.

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

An overview on swapping turbo mufflers for chamber mufflers on a 1969 C/10 pickup. See how to extend the muffler length using exhaust pipe.

There are several types of quarter-turn fasteners used in the performance automotive aftermarket and in this buyer's guide we'll help show you the correct fastener for your application and how some of the most common types of fasteners are used.

Testing a 2 or 3 wire speed sensor sounds difficult, but these videos show that it actually is quite easy!

Dick from Koul Tools shares a tip on how to properly seat the AN fittings using the Koul Tools device.

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.