GM Guy
Manual Trans. 2WD Enthusiast
I think you should just run it like a 96 and up cab and chassis, which had factory dual tanks. The factory setup (as far as the back tank goes) is the same AFAIK between gas and diesel. it operates like a single tank diesel. it has the fuel guage sending unit and the sucker tube w/ sock like diesel, with a frame mounted (above axle) 12V electric pump. On factory Dual tank 96 & up C&C's the back tank pumps to a tee in the front tank's filler vent hose.
So my idea is to get the tee, pump, wiring, lines, and balance module from a cab and chassis. Then I would get a diesel tank from a Suburban and mount the burby tank in the pickups spare tire location. If running OEM pickup box, cut hole in bed, have bodyshop put in fuel door to make it just like the front.
Then, since i feel it would be a PITA to get the balance module to work right and auto pump, I think just rig up a toggle switch (run 12v to it, then run 1 wire to the pump, utilizing the correct connector, connect wire from dash toggle to hot for pump, other wire needs to be grounded there. dont cut pump wires, so if you wanted to try and rig up balance module later everything would be intact w/ no splicing. We did just this on our 2000 gas, we had one male and female connector in the junk, so we plugged one in the chassis harness to keep everything clean, and then did the switch thing with the other connector.
I hope this is clearer than mud, rather than clear as mud.
Good luck!
So my idea is to get the tee, pump, wiring, lines, and balance module from a cab and chassis. Then I would get a diesel tank from a Suburban and mount the burby tank in the pickups spare tire location. If running OEM pickup box, cut hole in bed, have bodyshop put in fuel door to make it just like the front.
Then, since i feel it would be a PITA to get the balance module to work right and auto pump, I think just rig up a toggle switch (run 12v to it, then run 1 wire to the pump, utilizing the correct connector, connect wire from dash toggle to hot for pump, other wire needs to be grounded there. dont cut pump wires, so if you wanted to try and rig up balance module later everything would be intact w/ no splicing. We did just this on our 2000 gas, we had one male and female connector in the junk, so we plugged one in the chassis harness to keep everything clean, and then did the switch thing with the other connector.
I hope this is clearer than mud, rather than clear as mud.
Good luck!
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