Suburban auxiliary tank in a CCLB.

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EliandBessy

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Has anyone tried using a suburban tank as an auxiliary/secondary tank on a long bed truck? I’ve seatched the forum and see many people saying it’s possible but haven’t seen a write up of it being done. I like the of having 70 gallons on me when my 454 is getting 8mpg while towing.
 

evilunclegrimace

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I have done it in the past. It requires the rear tank crossmembers, straps and a switching valve along with some wiring harness mods. it is not to awfully hard just takes a bit of time and some patience
 

Stephen

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I considered doing that on my 96 CC LB srw but the cats and exhaust are in the way. They go down the frame rail on the inside on the passenger side. No where to put it except on the outside of the frame rail.
 

Supercharged111

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Only thing keeping me from doing it is not having a place to put the spare when the camper is loaded. The idea that I've had floating in my head now for some time is to put a pair of porkchop tanks in the bed in front of the fenders. Filling it is another challenge altogether, a transfer pump plumbed to the main tank would be the first thing I'd try. The charcoal can says it's good for 100 gallons, so no problems there.
 

Sparkysikes

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Super I had those in my 70 C20. Behind the bench seat and those 2x 17 gallon? tanks. Just plum a line from the bottom of the saddle tank to the main and let equallization take care of the rest. The 70's used a 3 position switch next to drive seat that was just a diverter valve and gravity did the rest.
 

Supercharged111

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I'm thinking of keeping them in the bed, off to the side in front of the fenders. Maybe even extending back over the fenders. Trouble would be filling them with the camper loaded. I figured for feeding the main tank I'd just have an inline valve that opens to gravity feed, never thought of using square body hardware for plumbing though that may be the ticket.
 

lxe4

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I was dreaming of that kind of setup at one time. figured out i needed to swap in/find the crossmembers. Figured I would use something like the square body electric selector valve and use a second proper fuel pump. Main thought was getting as much cheap american fuel over the border as possible when given the opportunity, and second was a redundant fuel pump cuz as we all know, they work right up till they dont and then... it sucks.
 
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