The Premier 7/8" x 2-3/4" Pushrod Thimble is the perfect solution for ensuring correct adjustment of valve clearance. This thimble is designed to fit on the end of the pushrod of an air chamber and contacts the adjustment shoe in slack reducing couplings. This thimble is made from highly wear resistant material, making it a durable and reliable choice. FleetPride is your First Click in Heavy Duty®.