I have the resistor on the firewall (a new one) with a green wire on top and brown wire on bottom (new stock wiring harness), battery ground strap from battery attached to cab body and starter ground strap attached to cab near the starter (both sanded bare and dielectric grease). Maybe the resistor is shot? The mystery to me is that all of this worked great when we started the motor for the first time a few months ago. Thanks for your input.
