Allison Transmission
Not just a six-speed, this sucker is infinitely variable!
Purple Heart Dodge
Twin-turbo common-rail rehabilitation
Towing Terror Duramax
A trailer-hauling machine that just happens to run 12s
Ford Bragging Rights
Could this be the most powerful 6.0L in Arizona?
The 7.3L Mule
A Super Duty workhorse turned drag truck
Torque Monster Cummins
A twin-turbo Dodge Mega Cab with 1,500 lb-ft
Killer Four-Cylinder
4bt Cummins-powered drag Ranger
Duel In The Desert
The NHRDA kicks off its season in Arizona
Audi R15 Vs. Peugeot 908
When these diesel-powered carbon-fiber super cars battle it out on the track--we all win
Diesels In The Dirt
How Volkswagen won the Dakar off-road race
Every 6.0L Power Stroke Problem--Solved!
The one article every Super Duty owner should read
Latest Mud Tire Test
We mounted a set of the new Goodyear Wranger MT/Rs on our Jeep and attempted to get stuck. We failed.
6.7L Upgrades That Won't Void Your Warranty
How much do taller tires really affect your fuel economy?
Choose The Right Turbo
From 400 hp to 800 hp, we've got your street truck covered
Buy The Right Trailer
What to look for in your next trailer
Make A Cummins Last Forever
This '01 Dodge Ram has clocked more than 1.4 million miles
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On The Cover: Here's something...
On The Cover:
Here's something you never thought you'd see in print: There's nothing wrong with the 6.0L Power Stroke. Shocked? Don't be. There are literally hundreds of thousands of these engines on the road--and guys like Brody Smelter love it when you underestimate them.