This is a new style U.S.A. made pushrod for the 1966 and later Shovels. The adjuster is put into the lifter body with a design to increase the stability of the pushrod at greater angles. A tapered split lock nut is used for the best possible way to lock the adjusting bolt into the lifter body. A 5/16-32 extra fine thread is used for easier and close adjustments. All pushrods are long enough to accomodate engines with stroker cylinders. All wear surfaces are hardened for maximum wear and durability. Rods and lifters with instructions. Sold as kit.