I bought this cart to fix up. I am new at this. The serial number indicates its a 1991club car. I am changing the battries. It had 6-6 volt batteries. When I looked at the electric motor it is a club car motor -part #1012191. The model# of the motor is 5BC48JB764. My question is: is the "48" in the model# indicating this is a 48 volt or not. I noticed whoever had this cart had put heavy gauge wire (4-ga.)on all the wiring. I was under the impression that in 1991 all were 36 volt. It is a resistor cart. Any thoughts from anyone or point me in the right direction.