2008 Dodge Viper Owner Manual Supplement - Page 17

5.2 Ride Height Adjustment Your ACR is delivered from the factory at a ride height that provides a good balance for drivability on the street. The adjustable suspension allows for ride height adjustment. As with all of the suspension adjustments, caution should be used when changing the ride height.  AUTION: Only the factory ride heights should be used while C operating the vehicle on the street. Low ride heights can cause damage to the vehicle. Adjusting the ride height: 1. R  aise and support the vehicle. Both left and right side wheels should be lifted off the ground to allow adjustment of the spring seats without damage. Never make ride height adjustments with the suspension loaded. The helper spring should never be fully compressed while adjusting ride heights. 2. Remove the wheel and tire assembly. 3. Loosen the set screw on the lower spring seat (approx 1 turn). 4.  To lower the ride height, use the spanner wrench and rotate the lower spring seat counter-clockwise (as viewed from below the damper). Use the set screw as a reference to return to street height. 5.  To raise the ride height, first turn the seat in the counter-clockwise direction and ensure the threads are clear of debris. Use the spanner wrench and reverse the direction. 6. Tighten the set screw to 22 in-lbs (2.5 N·m). DO NOT over tighten this screw. The ride height adjustment sensitivity is as follows: Front: One turn = 0.104 in. (2.6 mm) height change at frame Rear: One turn = 0.134 in. (3.4 mm) height change at frame Before any adjustments are made to your ride height, clean threaded area with soapy water to be sure it is free and clear of debris.