Universal Shifter T-Handle with Button Activator Switch Fits most B&M shifters;Fits most aftermarket SAE shifters;Activate any line lock or transbrake;Activate nitrous system;Works on 12 or 16 volt systems;Switch draw: 12v @ 10 amps;Thread inserts included;Thread size: 1/2 in.-20, 3/8 in.-24, 3/8 in.-16, 5/16 in.-18 B&M B&M Universal Shifter T-Handle with Button Activator Switch - 80658 80658 Auto Trans Shift Knob