This torsion assembly is a re-production as used in the ‘60’s front motor dragsters. It features improvements to the bearings inside the arms and new provision for lubrication. The unit dimensionally is 20” center to center of the arms. The arms are 6-3/8” from the housing center to the center of the 3/8” diameter axle mount holes. The housing tube is 1-3/8” O. D. x .058" wall 4130 tubing. The torsion bar is a 1/2” hex heat-treated alloy steel with the center undercut. The arms are adjustable by means if a 7/8"-48-tooth serration button that press fits to the arm. A nylon washer acts as a friction-dampening device.

Installation - Service instructions can be found on Service Bulletin #0084.