Switching to a dual tank setup - The 1947 - Present Chevrolet & GMC Truck Message Board Network

WigglesTheHoly · 11-07-2011, 12:23 AM

I found a bed for cheap that I'm looking to pick up but it has dual tanks where as my truck right now has a single. How much of a pain in the arse is it to run the wiring and what not to change the truck over. Or should I just mount a fuel cap there and forget about it.

THE "10" SILVERADO · 11-07-2011, 01:05 AM

Why do you need to get a new bed? If you wanted you could take the drivers side bed panel off of your truck and swap it with the one on the new bed. I swapped an 84 side on my 77 so I could get the fuel door. I didn't get a new bed but if I did and I didn't add a second tank it would bother me (bit OCD).....I would think making it a duel setup would require more money than anything in the long run.

**hatzie** · 11-07-2011, 09:06 AM

You'll need a tank, filler neck, mounts, sender, valve, lines, and wiring. Probably $250 in new parts.
I'd go with the later motorized valve and wiring. Pollack has discontinued the earlier solenoid valve and knockoffs are...

WigglesTheHoly · 11-07-2011, 10:15 AM

THE10Silverado I think we are looking at this 2 different ways lol. I'm buying an entire replacement bed due to both of the trucks I'm building have rust around the wheel wells. The white 79 has the side of the bed caved in even.

Hatzie WOW I didn't realize it would cost that much. sounds like I may just stick a cap on that side and call it good. Unless one of our parts trucks has the wiring and what not then I'll whistle a different tune.

**hatzie** · 11-07-2011, 06:58 PM

The tank is $100 new. The selector valve is $100 new. I was guessing $50 for miscellaneous parts.

If you have two trucks you have all of the tank and bracket bits you need unless they're rotten. Tanks and brackets can be used on ether side by turning the sender and brackets 180.

The wiring is a sub-harness and should be fairly cheap used. The master sender and power wires terminate on the firewall block in the engine compartment. Everything else can be pulled off the frame and out of the cab without opening another loom.

The fuel lines are the most tedious part of the project.

WigglesTheHoly · 11-07-2011, 09:01 PM

I'm really crossing my fingers that the 77 has dual tanks.

11-07-2011, 12:23 AM	#1
WigglesTheHoly IT Guy/ Father/ Chevy lover Join Date: Feb 2010 Location: Hoisington, KS Posts: 568	Switching to a dual tank setup I found a bed for cheap that I'm looking to pick up but it has dual tanks where as my truck right now has a single. How much of a pain in the arse is it to run the wiring and what not to change the truck over. Or should I just mount a fuel cap there and forget about it. __________________ 78 Chevy (Pictures) SOLD 79 Chevy LWB (pasture) 83 Chevy LWB (crushed rusted beyond repair) 02 TrailBlazer SOLD 03 VW Passat wagonSOLD 95 extended cab silveradoSOLD (still in family) 05 Crew Cab Silverado 5.3 (The Turd) WTB: 66 El camino Technology Specialist aspiring to be a gear head.

11-07-2011, 01:05 AM	#2
THE "10" SILVERADO Registered User Join Date: Sep 2010 Location: Marble Falls, TX Posts: 1,575	Re: Switching to a dual tank setup Why do you need to get a new bed? If you wanted you could take the drivers side bed panel off of your truck and swap it with the one on the new bed. I swapped an 84 side on my 77 so I could get the fuel door. I didn't get a new bed but if I did and I didn't add a second tank it would bother me (bit OCD).....I would think making it a duel setup would require more money than anything in the long run. __________________ Michael Re-starting the neglected '77...http://67-72chevytrucks.com/vboard/s...=425464&page=9

11-07-2011, 09:06 AM	#3
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,950	Re: Switching to a dual tank setup You'll need a tank, filler neck, mounts, sender, valve, lines, and wiring. Probably $250 in new parts. I'd go with the later motorized valve and wiring. Pollack has discontinued the earlier solenoid valve and knockoffs are...

11-07-2011, 10:15 AM	#4
WigglesTheHoly IT Guy/ Father/ Chevy lover Join Date: Feb 2010 Location: Hoisington, KS Posts: 568	Re: Switching to a dual tank setup THE10Silverado I think we are looking at this 2 different ways lol. I'm buying an entire replacement bed due to both of the trucks I'm building have rust around the wheel wells. The white 79 has the side of the bed caved in even. Hatzie WOW I didn't realize it would cost that much. sounds like I may just stick a cap on that side and call it good. Unless one of our parts trucks has the wiring and what not then I'll whistle a different tune. __________________ 78 Chevy (Pictures) SOLD 79 Chevy LWB (pasture) 83 Chevy LWB (crushed rusted beyond repair) 02 TrailBlazer SOLD 03 VW Passat wagonSOLD 95 extended cab silveradoSOLD (still in family) 05 Crew Cab Silverado 5.3 (The Turd) WTB: 66 El camino Technology Specialist aspiring to be a gear head.

11-07-2011, 06:58 PM	#5
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,950	Re: Switching to a dual tank setup The tank is $100 new. The selector valve is $100 new. I was guessing $50 for miscellaneous parts. If you have two trucks you have all of the tank and bracket bits you need unless they're rotten. Tanks and brackets can be used on ether side by turning the sender and brackets 180. The wiring is a sub-harness and should be fairly cheap used. The master sender and power wires terminate on the firewall block in the engine compartment. Everything else can be pulled off the frame and out of the cab without opening another loom. The fuel lines are the most tedious part of the project.

11-07-2011, 09:01 PM	#6
WigglesTheHoly IT Guy/ Father/ Chevy lover Join Date: Feb 2010 Location: Hoisington, KS Posts: 568	Re: Switching to a dual tank setup I'm really crossing my fingers that the 77 has dual tanks. __________________ 78 Chevy (Pictures) SOLD 79 Chevy LWB (pasture) 83 Chevy LWB (crushed rusted beyond repair) 02 TrailBlazer SOLD 03 VW Passat wagonSOLD 95 extended cab silveradoSOLD (still in family) 05 Crew Cab Silverado 5.3 (The Turd) WTB: 66 El camino Technology Specialist aspiring to be a gear head.



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