The Toolbox

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.

Tech write-up and a video of a Lokar shifter install on an automatic transmission.

Learn how to measure wheel bolt circles with our wheel bolt pattern guide. Use this chart to make sure the rims you order match your wheel bolt pattern and fit your vehicle.

Check out this helpful piston ring style chart.

In this tech article, we discuss the pros and cons of the Ford 9-Inch and the Chevy 12 Bolt rear ends. Click here for our take on this classic debate.

Here are some tips about Copper & GraphTite gaskets.

Learn how to bed in your break pads!

In this tech article, we show you how to measure the working angles on your drive shaft to ensure long life out of your U-joints.

Check out these 1937-'48 Ford spindle diagrams and advice on how to assemble them!