Check your converter before you install it in the transmission or box it for shipment with this easy to operate unit! Don't let a bad converter ruin your rebuild! This easy-to-operate unit checks "pilot-to-hub" run out, "bowl" run out and overall converter height. It will check any automotive unit. Precision bronze bearing assembly and two precision indicators. Interchangeable "hardened and ground" steel pilot bushings are sold separately. Available exclusively from TCRS!