This extension is used to rotate axle up and to help in solving rear pinion angle problems. Bolts to the A Arm and relocates the existing rear swivel link to the rear up to 1″ maximum.
Also for trucks lifted 3″ or more, this link will restore some of the lost Rear A Arm swivel joint geometry which diminishes as we lift the suspension.
Set back is to customer specifications. This may require lengthening the rear links depending upon the purpose of your truck. Moving rearward 1/2″ results in a change in pinion angle of approximately 3 degrees.