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Old 08-19-2009, 09:35 AM   #1
Moody Blues
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Gas tank issues

My truck (87 GMC V2500) has dual 16 gallon gas tanks. I have to replace the driver side tank. I know they had a 20 gallon tank as an option. Can I replace my tank with a 20 tank.
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Old 08-19-2009, 11:08 AM   #2
JohnC
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Re: Gas tank issues

No the 20 gal tank is for long beds. The 16 gal tank is for short beds. I don't think there is enough room for the 20 gal tank to fit on a short bed.
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Old 08-19-2009, 11:21 AM   #3
Keith Seymore
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Re: Gas tank issues

Hang on there, John. If he's got a V2500 then it is a long bed. It may have received the 16 gallon tanks due to some GVW limitation (rather than length).

I'd say a 20 gallon tank might work.

Also - just to clarify: 16 gallon vs 20 gallon wasn't really an "option", in that you could just "choose". The decision was made for you based on wheelbase, weight, etc as mentioned above. You could, however, chose single tank vs dual tank, as you already know.

K
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Old 08-19-2009, 04:29 PM   #4
old Rusty C10
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Re: Gas tank issues

if you look along the frame rails towards the rear you will see the matching holes for the longer tank. the farther end of the tank bracket on there with the short tanks and then you use the set of holes like three or four inches down... trust me i did this last month with my 82
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Old 08-19-2009, 05:41 PM   #5
Moody Blues
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Re: Gas tank issues

Thanks for the info guys. I am going to go with the 20 gallon tank. With the 350 and the 4:10 gears I could use the extra capacity.
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Old 08-19-2009, 05:45 PM   #6
Sniper X
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Re: Gas tank issues

Speaking of all this dual tank stuff.....does any one know where to get the dual tank valve cheap?
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Old 08-19-2009, 08:04 PM   #7
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Re: Gas tank issues

which valve?
the one under the frame rail or the switch on the dash
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