Today I changed the coils on a 1988 Club Car. My question is: I matched up the new with the old, the best I could. The cart is being restored, but the cart runs in forward and rev. On stands no problem. Some of the coils were perfect but the last 2 seem to be the same in size ''on the big end'' When I ordered them I ordered 1st thru 5th . What do they really do and am I going to run into any trouble?