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| | | Forums66 Topics128,162 Posts1,057,068 Members48,463 | | Most Online14,466 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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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Dec 2006 Posts: 1,154 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 1,154 | We were told that Stewart Warner made an electrical gas guage that can mount to the top of the gas tank in a 3100? It suppose to be more accurate and the gauge would be hidden from view and not hanging under the dash like a wart. As we understand it the original sending units are not accurate and people have become frustrated with this inaccuracy. Sounds like a good idea? We have no sending unit in the tank and we have 6-12 volt conversion so it was suggested that this was a way to go? I'm not crawling under the dash, I'm too dang old! Right now we shake and listen and keep a log. Thanks Steve | | | | | Joined: Jul 2001 Posts: 3,887 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Jul 2001 Posts: 3,887 | year? why not replace the original sending unit and be done with it? any aftermarket gauge can be mounted anyplace you want and the accuaracy will be about the same as original, when full it'll read about full and when empty it'll read about empty, but ..... you're worried about accuracy and want a gauge behind the seat??  Bill | | | | | Joined: Apr 2006 Posts: 136 Shop Shark | | Shop Shark Joined: Apr 2006 Posts: 136 | Who Me, where did you see this tank mount gauge? I looked on the SW web site, and couldn't find anything. Just wondering. | | | | | Joined: Dec 2006 Posts: 1,154 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 1,154 | Bill you are right but we have been told the new Chinese sending units are junk and can't be trusted to even work correctly even in the forums if you do a search you read nothing but trouble with the gauge or the Chinese sending unit???? Maybe they are better now?
Ole...we were at a car show and the guy was doing a truck over. He purchased an electronic SW gauge with a SW 12" fuel tank drop line and was making a cover to hold the gauge and that would bolt on to the tank opening where the sending unit goes? I guess its just an SW electronic gauge that he did not want on the dash board it is going to be custom truck. We just thought it was a great idea getting around messing with the old fuel (or Chinese) sender and gauge??? Steve | | | | | Joined: Jul 2001 Posts: 3,887 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Jul 2001 Posts: 3,887 | Steve - the repro AD gauges may be a problem, I don't know, but the sending units are as good as original, and as crudely accurate as any - all you normally have to do to get a full sweep [what most complain about] is bend the float arm - and you'll have to fiddle with that anyway as all the aftermarket gauges use "universal" senders that have to be adjusted to the tank you have
"accuracy" is a matter of running the tank dry watching the mileage to see what it reads as you go along, you will never get any gauge that tells you much more than F, 1/2, E, you just need to figure out where E is .... and you'll have a hard time figuring that out with the gauge behind the seat!!
and the SW gauge is electric, the same as the original, not "electronic", which implies some superior circuitry it doesn't posses, it's just an ohmeter that responds to the variable resistance of the sender, same as the original, with a different resistance - original is 30 ohms, aftermarkets use 90 ohms [as modern GM] or 240 for some
Bill | | | | | Joined: Dec 2009 Posts: 194 Shop Shark | | Shop Shark Joined: Dec 2009 Posts: 194 | I bought 2 of the sending units, they work well. As previously stated full means full or almost full.Gas running out the fill pipe means full. Empty means almost empty. Sputter , sputter ,die means empty. All kidding aside, they seem to work as well as the original ones. | | | | | Joined: Apr 2006 Posts: 136 Shop Shark | | Shop Shark Joined: Apr 2006 Posts: 136 | hankrags, where did you get your sending units from? | | | | | Joined: Dec 2009 Posts: 194 Shop Shark | | Shop Shark Joined: Dec 2009 Posts: 194 | | | |
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