FRONT TORSION-BAR MOUNT Stops annoying "clunking" noise under your truck! Restores safe steering and handling and helps maintain front-end alignment For '88-94 Chevy/GMC S-10/S-15 pickups, Blazer/Jimmy and Sonoma 4WDs A worn torsion-bar mount can cause erratic, unsafe steering and prevent proper front-end alignment. If you're experiencing a knocking, clunking noise during up/down suspension travel, you may have mount failure (even normal driving can cause premature wear, off-road driving even more wear). Correct it with this mount, which replaces original perfectly. Recommend replacing mounts in pairs.