Cars & Vehicles Auto Parts & Maintenance & Repairs

How to Crank a Torsion Bar

    How to Crank a Torsion Bar

    • 1). Drive the vehicle onto the alignment rack (or drive onto a lift with leveling position) so the vehicle is level. Alignment racks may come with front wheel pits, but it is important that the vehicle be level for this procedure. If front wheel pits are present, do not park the vehicle so the front wheels are in the pit, sitting lower than the rear wheels.

    • 2). Lift the alignment rack and lock it into level position.

    • 3). Measure each front fender well (be sure to use the same spot on each front fender for comparison). You can measure from the center hub of a wheel to the fender at the top of the wheel well or you can measure from the alignment rack to that same fender. Measure each side and compare the measurements. Oftentimes, the figures between the two front wheels will vary.

    • 4). Wearing safety glasses and safety impact gloves, crawl under the vehicle to the torsion bar adjusting bolts (on the center cross member).

    • 5). Spray penetrating lubricant on the each adjusting bolt and on the threads and allow the lubricant at least 10 minutes to soak in.

    • 6). Hold the nut at the top of the adjusting bolt stationary with a hand wrench (some applications may not require this part). Use the impact gun (see tips) and appropriate-size impact socket to tighten (clockwise, often referred to as "cranking") the torsion bar adjusting bolt to lift the front of the vehicle height on that particular side. To lower the front of the vehicle height you would loosen (counterclockwise turn) the torsion bar adjusting bolt.

    • 7). Your assistant can now remeasure each side. Readjust the bolts as necessary until the measurements are equal.

    • 8). Lower the alignment rack and conduct a test-drive to settle the suspension components. The test-drive should last a good 15 minutes or so.

    • 9). Drive the vehicle back onto the alignment rack and then remeasure. If there are any variations wheel to wheel, readjust the torsion bar adjusting bolts another time, test-drive again, and recheck the measurements. Do this until the measurements match or are very close on both sides after the test-drive.

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