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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jun 2006 Posts: 80 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2006 Posts: 80 | Hey guys, I havn't been on here for awhile, been spending way to much time and money on my Jeep project. My truck has made some progress but pretty slow. Anyway my neighbor friend recently picked up a '72 chevy. The PO removed the tank behind the seat and put in a Blazer tank between the frame rails behind the axle. The truck runs and drives but the gauge doesn't read correctly and the filler neck to the tank isn't hooked up. The filler neck just has a rubber hose coming up inside the wheel well.
Questions are:
Is it possible to have the stock gas gauge work with the Blazer sending unit in the tank? Is there a way to recalibrate it?
Where do most people mount the filler neck when they relocate the tank? He would rather not put it in the bed since it would be covered when anything is loaded in there.
thanks,
Blake | | | | | Joined: Mar 2008 Posts: 374 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 374 | I had a custom tank built to put under the truck bed. I used a new factory sender and 'recalibrated' it by bending it. I made it read e when at the bottom of the tank and f when at the top. | | | | | Joined: May 2005 Posts: 1,624 Shop Shark | | Shop Shark Joined: May 2005 Posts: 1,624 | Hotrodders and Streetrodders put new filler necks/gas doors in all the time. Depending on how good he wants it to look, he can salvage a gas door from a salvage yard or buy it aftermarket. Just cut a piece of cardboard with the contour of the sheetmetal where he wants the door and go looking. Take along a battery powered saws-all to cut the piece out with metal to spare. As to get from the gas door to the tank, depending on length, a short rubber hose of the right size (measure the neck on the tank). Then a piece of pipe bent at home or a muffler shop, if you can't find it also at the yard. Another short piece of hose from pipe to gas door neck and you got it. If he just want a filler hole with a gas cap it get even easier. Remember to put a vent in. We weld a small metal tube (1/4") to the top of the metal pipe close to the gas hole. Then slide a rubber hose over that, then mount the other end higher somewhere and put a cheap gas filter on that end to keep water out. Good luck.
Six volt guy living in a twelve volt world
| | | | | Joined: Jul 2008 Posts: 1,262 Shop Shark | | Shop Shark Joined: Jul 2008 Posts: 1,262 |
Last edited by Hot Rod John; 03/16/2011 10:28 PM.
| | | | | Joined: Jun 2006 Posts: 80 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2006 Posts: 80 | thanks guys, I will have to pass this info on to him. That 67-72chevytrucks site seems to have tons of good info about this. | | |
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