Mobile Mechanic
You might be able to get some better results posting a thread in the regional (Northeast) section on the forum.
77’s only came with one mechanical fan, are you trying to hook up electric ones?
Fan power, I came off the starter. Bought a #4 AWG stranded battery cable from Napa, cut to length and crimped my own connectors on.
I installed that cable to a splitter busbar. So I have the options to tie more electrical stuff on later.
For ground, I found a hole in the frame. Wire brushed it, added dielectric grease and ran a cable to another splitter busbar.
Power for the relays comes off the wiper motor power wire. So when you remove your car keys the fans turn off. You would drain your battery if wired this to like a radio clock or so.... the fan would run until the thermostat shut off the fans.
Thermostat... you can either install a radiator thermostat or engine block thermostat. The radiator thermostat is a rod that you push through your radiator fin. I went with the engine block thermostat, figured it might give me a more accurate temperature reading.
It's not that difficult. Use napa for cables. Order your connectors, crimper and busbar from Amazon. And remember to didconnect the car battery when working.











