Aside from its body, there’s absolutely nothing square about this 1978 Chevy one-ton heavy-duty. Oozing cool, this Squarebody C30 single-cab dually was rebuilt to be a daily driver - one the owner isn ...

A 1978 hand-built Chevrolet C30 pickup truck arrived in Jay Leno's Garage. It is a custom truck that tows a show truck to car ...

Chevy C30 delivers with a dually body style and modern Cummins powerplant. Now, we're taking a closer look thanks to the ...

Cummins engines are found in Ram trucks, but Allison transmissions are in GM's realm. Can you put an Allison transmission behind a Cummins engine?

For decades, when someone mentioned a Cummins 6.7, you didn’t just assume ... If you were already planning to swap one of these into your bus conversion and hit the road, you’ll have to ...