62 Dodge D500 New Starter Wiring

Thanks for the Replies. Turns out that Solenoid wasn't even part of the starting circuit but used to Power an electrical socket at the back of the truck. But we ran into another problem, We did it get running today though. Now the Clutch won't disengage. It's got a Hydraulic Clutch (remember this thing was in water about 3 inches deep from the bottom of the door) and won't disengage to go into gear. The inspection plate was off during the flooding. Hydraulic Components seem to be all in working order, Push Pedal, Slave Cylinder works, Looking in the inspection plate, the clutch disks move, we can see a noticeable gap between the plates when the pedal is pushed, but it just grinds gears when trying to put it in gear with clutch pedal pressed. Short of taking the transmission out, does anyone have any suggestions as to what may be causing this????