on my 55 I use 56 fan motors and since I couldn't find a 56 wiper motor I made a 90 dakota one to fit, not hard at all
I don t think resistors are a good idea, they make a lot of heat if they hold up at all
for the gauges I use a small voltage regulator that was also pretty easy to install

http://www.eidusa.com/Electronics_Voltage_Regulator.htm

Last edited by mafo; 04/14/11 05:51 PM.
-65 Valiant,420", all motor,2700#, dot tires, 8,42 @ 160,2