If you're planning to drive your hot rod or custom (and why wouldn't you?) you need to make sure the engine, transmission, third member, and driveshaft are all working together in harmony. The piece ...

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 ...

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 ...