Have you recently had your 4x4 lifted and are suffering from a harmonic oscillation that can both be felt and heard? Have you rebalanced your tires or swapped in newly balanced driveshafts only to ...

I have a 1931 Model A Cabriolet that I am building. I have put a new dropped front axle in, boxed and reinforced the frame, and intend to install a Chevy 350 with auto trans. I bought an 8.8 rearend ...

Why do we have to think about these angles at all? We wouldn't if the engine, transmission, driveshaft, and pinion all shared the same centerline. As it is, these components are never on the same ...

Tapered rear lift blocks are often included with complete lift kits. They are generally used to help eliminate the driveshaft vibrations and binding that can surface when lifting the rear of a 4x4.