fuel sending unit ?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Big Blue · 03-07-2018, 06:19 PM

I am looking for a fuel sending unit. I want to get the right one. The picture is of the one I removed from the current tank. If you look at the pics you can see that the depth is 10 1/2 inches. From what I have read that the depths are 10 3/4 for a 25 gallon tank and 12 3/4 for a 31 gallon tank. So what size tank do I have and what size sending unit do I get???? Thanks John

Bandit130 · 03-07-2018, 07:37 PM

I would think the 10 3/4 since you measure 10 1/2. Only 1/4" difference which is not a lot. The sock could probably make that difference. Definitely do not need the 12 3/4. If you can buy one local, take yours with you to be sure.

03-07-2018, 06:19 PM	#1
Big Blue Registered User Join Date: Feb 2005 Location: Northeast--Bethlehem, Pennslyvania Posts: 642	fuel sending unit ?? I am looking for a fuel sending unit. I want to get the right one. The picture is of the one I removed from the current tank. If you look at the pics you can see that the depth is 10 1/2 inches. From what I have read that the depths are 10 3/4 for a 25 gallon tank and 12 3/4 for a 31 gallon tank. So what size tank do I have and what size sending unit do I get???? Thanks John Attached Images __________________ Big Blue ( John ) 79 Chevy Pick up.....My Dailey STILL Working on a frame up: 1987 Truck body on a 78 Blazer frame. Need cab blasted to start project. Got the cab BLASTED, Now Prep and Paint. Started to lay SOME BONDO and primer. Done, Ordering paint. Got paint, Stuff painted,Cab,Fenders, Hood more later. 9/7/2015 Got the clear coat on,now time to take one off. Started to put things back (What a nightmare) like the heating and AC stuff,inside wire harness, outside AC unit and booster, still more. May 2016, still working on the inside. Got duck work in,heating and AC. Radio (stock) in dash with after market in console later, Speaker are hooked up, Steering column is in. Getting ready to drop the cab onto the frame, Working on engine now since I have the room. Well here it is 2018, got the engine in and it runs, now I need to get the exhaust system in so I can adjust the lifters, to loud right now. Got the exhaust on now I am waiting for the break parts to come in.

03-07-2018, 07:37 PM	#2
Bandit130 Registered User Join Date: Dec 2014 Location: Euless, Texas Posts: 519	Re: fuel sending unit ?? I would think the 10 3/4 since you measure 10 1/2. Only 1/4" difference which is not a lot. The sock could probably make that difference. Definitely do not need the 12 3/4. If you can buy one local, take yours with you to be sure. __________________ 1974 Cheyenne 10 LWB Stock 350 W/HEI /TH350/AC/4 BBL Quadrajet Mopar by Birth Chevy by Choice

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