First Speed Resistor for 1974 to 1985 Taylor Dunn model SS-534 Step Saver +++ First and Third Speed Resistor on 1986 and newer model SS-534 Step Saver +++ Second Speed Resistor on models GT and R +++ Third Speed Resistor for Taylor-Dunn models B and BN and others +++ Mid 1970s Eagle golf cart made in Long Beach California by Lad Industries +++ Karrior 2400 XP burden carrier and other models speed control.