Sourcing certain components for your race car can be frustrating at times. You've got a new transmission, torque converter, cooler and shifter, but now you discover that your dipstick is damaged, or even worse, missing altogether. TCI recommends a part from its line of quality dipsticks for GM Powerglide transmissions. Each dipstick features a locking stick which satisfies sanctioning bodies' racing rules. The rubber boot seal is a vast improvement over the small o-ring typically used on older OEM tube designs.