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 ...

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.

Driveline vibrations are easy to feel, but solving them can puzzle even the most methodical of knuckle-busters. Does your car have the highway vibes? Just sending your driveshaft out for a balance job ...