Gas Tank Install Help
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Ok,I am stuck on my tank install and I really could use some help, as I may have made the wrong choice in choosing this tank. Please bear with me as I explain my problem.After doing the research and taking all the measurements I thought I needed to take, I opted for this tank, a mustang tank ( 65 to 68 ) from tanks inc. This tank has been installed in other chevy frames with some modifications.
http://www.tanksinc.com/cartimages/prod_zm_311.jpg The measurements for this tank are 32-3/4''x24-1/2''x7-1/2'' deep.. This is what was in there before, the blazer tank.. pic#1 As I position the tank to try to fit between the frame rails, I see that it won't squeeze in at all. the measurements for the in side of the frame is 33-1/2'', the bottom side of the mustang tank is 29'' even from end to end.Pic#2 new tank up against the frame In pic # 3, this is where I got stuck..The bottom part of the frame that you see is 3'' wide. In order for me to slide the tank between the frame I would have to cut approx. 1-1/2'' from each side. That seems to be a bit too much I think with out loosing any strength integrity of the frame. Correct? In pic #4 The top part of the frame towards the front is 3'' wide and tappers down to 2-1/2'' towards the rear, but the bottom portion of the frame is 3'' even front to rear. I don't know if its safe to cut off from the bottom portion-of the frame as I mentioned before with out making it weak.. I don't know what exactly I need to do here and could use some help or advice. I was told from the guy's at Tanks that people use this tank for a lot of under bed conversions with minimal issues. Is there something I can do to get this tank to work here? I'm not even sure if I can return it. This is a real headache right now. Thanks everyone for any help you can offer. Sorry for the lengthy post, but thought it was necessary....... |
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old thread resurrection...
legotech7 did you figure it out? I'm getting ready to order a Mustang tank and want it to go smoothly... |
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Well found you have to cut 1.5" off each side rail to fit it in.....went way back in search function land...might just get a boyd's alloy tank..
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Anyone running an Aeromotive tank with built in fuel pump and sending unit? I was looking at their unit for my 1956.
https://www.summitracing.com/parts/a.../model/mustang |
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If you want to see how it's done check out my 49 build in my signature. |
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"The $218 one is for EFI and it does have internal modifications and external changes. this is definitely true
Its nothing like the $80 tank and it won't work for a stock mustang car. This is also trueif your attempting to use a stock sender pickup on the EFI tank . it Its coated steel and has the proper holes for EFI pump and sender. Again also true. The $80 stock tank has one hole near the bottom of the tank for a pickup and sender. also true. It won't work for EFI at all without a lot of modifications" It would work with a stock sender to plug the hole in the bottom and using an pump like a PA series. or an external pump with the stock sender and pickup so its half true I can agree with you here somewhat, You may or may not have a starvation issue without the tray but for the price of it I prefer to have a tray in it or a pump that has a cup. |
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Regular cheap tank. Sweat out the stock fill pipe and added the tanks inc filler myself, then put the vent/ roll over valve in the cap. I've got some 3/8" weld in bungs to add in the bottom corner of the tank. Probably won't bother with a sump. Mechanical pump on the motor, and possibly an external fuel pump on the frame rail of we need it. It'll be a turbo & efi motor. Had to trim the insides of the frame rail 3/4" on each side for it to slide in, and then I nutserted the tank and bolted it under the top framerail so it looks like it's supposed to be there. Still need to add a rear cross member back in. Probably just 2x3 angle so it captures the tank, but it can be dropped and slide back out if needed.
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i used the 65 mustang tank from tanks, inc. very happy with it!
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You using a stock rear bumper, or roll pan? Did you end up using a flexible hose from the fuel neck, & a flip up or down license plate door. I assume that bend for the fuel neck is a 70 degree from tanks inc. I paid a fab guy to 4 link my rear, & install the mustang tank, but he shimmed the tank down below the frame rails, then he installed a 90 degree rubber fuel neck. Looks like crap, & can't put a fuel nozzel in it. I'm thinking i need remove the 2" sq tubing shims, install the same fuel neck as you. Please advise |
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He mounted above the lower rail and had to trim the frame to accommodate the tank. I remember selling him a 70 degree neck and it should drop just under the rear cross sill. Use a 2" ID short rubber hose to connect to a fill neck and you should be good to go. You can get a flip down plate hanger to hide it and you will have to fab a little hanger for the fill neck.
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So from what I've read here, & what your saying, is in order to slide it in between the frame rails, the rear cross member needs to be relocated further back, & 1 &1/2" inches has to be trimmed from the frame rails. Another option I'm considering is the 59-60 car gas tank, & cut down the fuel neck. Would either install result in about the same ground clearance? |
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If I remember correctly, someone on this site installed a Suzuki Sidekick tank on the framerails like the 47/48 trucks.
There are 11 gallon, 14 gallon, and 18 gallon models. Not to mention they are fuel injection ready. Sending units are another matter. A universal kit will need to be installed. |
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I Removed the mustang gas tank that my fab guy installed.
He mounted it below the frame rails, & double shimmed it with square tube channel & dropped it down even further. Looks like crap, hanging down way to low, & the full 90 fuel hose he used won't allow me to put a fuel nozzle in. I'm thinking about grinding off the spacers he welded in, & bolting directly on the bottom of the frame rails, instead of inside the frame rails. Can't see gaining that much more clearance if installing inside the rails. And I won't have to relocate the cross member, or trim the frame rails. Seems this would still allow me to use a 90 degree fuel neck, & have the cap behind a flip down license plate. If you want something done right, gotta do it yourself. |
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I agree on removing the tube frame and not putting inside the rails. I would not use a 90 on the fill. Its to short and it will back flow when you fill it. get a new tank neck like the one I posted (70 degree) so the hose slopes down toward the tank.
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I decided to scrap the mustang tank option, & decided to go with the 59-60 car gas tank option.
So if anybody in Houston area needs a NEW mustang tank, I'll be selling mine. As far as installing a flip up/down license plate to access the filler neck, I assume this is bolted to the bottom cross sill? Or do I need to fabricate something for that? Looks to me it can only be a flip up if bolted to the cross sill, a flip down seems like it would be too high, & hit the bottom of the tail gate. |
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yes its a stepside stock rear bumper yes that fuel neck with the bend came with the tank from tanks inc yes i used a flexible fuel hose. i made my own flip down license plate by combining the stock license plate braket and a universal flip down bracket. getting the custom braket welded to the rear sill was not an easy job. an old friend of mine with 40 years of welding / metal work experience was able to do it. |
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filler pics
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I just got done doing a mustang tank in my 59 stepside and love it way easy and fun to do can't even see it.
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That looks nice @ 59chevy310p. Where did you route the filler?
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Thanks its my first time doing a rat rod resto on a vwhical. Gonna do it up through the wood bed onice I get the wood in lol still trying to figure out with what I want to do with the truck this is what it looked like before I tore it down to the frame want it lower but I really don't have a shop to work on it so I have been doing all my work outside on the gravel. It will get there in time just enjoy these trucks I guess thats why I have 3 of them lol
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