Upgrade your Dodge diesel or Ford Super Duty with Sonnax's splined stub-and-sleeve kit.

Replaces two-piece drivelines for better durability and torque.

The 7.3-liter Godzilla engine was designed for Super Duty trucks.

Now you can fit the engine into your car by relocating the factory oil pump.

Ford Super Duty trucks have been dealt a blow with another recall.

Find out if your F-250 or F-350 is on the list.

Think building a hard-hitting Mopar is just too expensive? Watch as we take a 9 3/4 rear from junkyard scrap to a bad ass in just a day! Thanks to Currie Enterprises, Killer Kong's budget Dana 60 is transformed into a tire-burning rear worthy of 1,000-horsepower!

If you’ve got a diesel truck, chances are you do a lot of towing with it. Ford’s new Super Duty diesels have towing capacities of up to 24,000 pounds. K&N’s new air intake systems give you an additional 16