RTS Transmission Dipstick and Tube, Trick Loc, All Holdens, Commodore V8 with Trimatic Gearbox, Steel Tube/Plastic Lock, Boot Seal, EachRTS introduces its newest quality Trick Loc dipsticks. Most of the dipsticks feature a locking stick that 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.