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Posted

I want to get rid of the gas tank behind the seat in my 68 K20. But I also want to keep the stock spare in the stock location. I want to install a right side and left side saddle tanks similar to the design on the late 70's and 80's square body Chevy's. Does anyone know of a company that is building these kits? I know I could have one built for around $800 - $1,000.00 but that's not in my budget. The other question I had is, will a stock gas tank off the square body chevy fit into a 67-72 frame?

Posted

didn't gm get sued/forced to move the tanks inboard due to fun gas fires for side collisions?  I doubt aftermarket companies would want a piece of that pie...

Posted

I had a 70 c20 that had custom 50 gallon tanks on each side, fiberglass, probably not good with the alcohol in the gas these days. The truck could go from Mass to Fla on 1 gas stop towing. I'm sure you could make square body tanks work with some fabrication, you will have to cut holes for the fill pipes, later models have an internal fuel pump

Posted (edited)

Back in 1984 I factory ordered a HD 3/4 ton K20 camper special. Phase out era of leaded gas so it had a 8600 gross rating so it could run regular leaded gas. Ordered with every HD option available,quad front shocks, dual batteries, even an air cleaner pre-cleaner which was available for awhile in the NW with Mt. St. Helens a not so distant memory. Camper was a 9'3" Conestoga 3000 lb dry weight which gave me about 10 mpg while hauling it. Filling both saddle tanks at once at a gas station was a bit of a PITA, especially with a camper aboard so I set about a solution. Ordered some neoprene fuel hose and used copper plumbing T's to link the tanks together. Stupid me I forgot about the vent hoses, was reminded of that when I first tried filling both tanks from one side and that displaced air needs to go somewhere. Once I linked the vent hoses together the system worked beautifully and I could fill both tanks at once from either side I chose so I had about a 350-380 mile range while hauling the camper. Sure made things easy at the gas station without jockeying around. FIL had a '17 ski boat for the grandkids, when towing that and hauling the camper I got about 8.5 mpg. If I could have found a spare tire tank I would have installed that too and located that heavy ass spare tire to the cargo area of the camper with a come-a-long. Forgot to add, 350 with mechanical fuel pump actuated by a pushrod off the cam, HD manual transmission with compound low first gear so you normally started off in 2nd gear, 3.73 gears.

Edited by garagerog

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