fuel tank size?
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Joined: Feb 2009
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Stock should be 40 I believe, unless you do the tank mods then I hear about 44...
Lead Driver
Joined: Jun 2007
Posts: 7,760
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From: Hampton, Maryland.
Really? My 29 gallon rated tank, if I take my time, I can get 31 gallons in it almost every time I run it down. I would think you 38 gallon guys/gals could at LEAST get 40 in yours, but I guess the different configuration means no go.
Lead Driver
Joined: Dec 2006
Posts: 7,092
Likes: 145
From: San Diego, CA
That's because the filler and vent tubes stick several inches down into the tank (4-6" of PVC IIRC). This will shut off the pump prior to being full giving you a capacity rating of 28 gallons. If you keep clicking the pump to "top it off" you can get a couple of more gallons in there. If you go in and clip those tubes (known as the "hutch" mod) you can get several more gallons in the tank. I routinely put 30 gallons in (and the low fuel light isn't even on) on fill-up on my "28" gallon tank on my short bed and go nearly 500 miles between fill-ups.
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Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
That's because the filler and vent tubes stick several inches down into the tank (4-6" of PVC IIRC). This will shut off the pump prior to being full giving you a capacity rating of 28 gallons. If you keep clicking the pump to "top it off" you can get a couple of more gallons in there. If you go in and clip those tubes (known as the "hutch" mod) you can get several more gallons in the tank. I routinely put 30 gallons in (and the low fuel light isn't even on) on fill-up on my "28" gallon tank on my short bed and go nearly 500 miles between fill-ups.
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Lead Driver
Joined: Dec 2006
Posts: 7,092
Likes: 145
From: San Diego, CA
My bad. It's the 'harpoon' mod, not the 'hutch' mod. I did them at the same time so I keep getting them backwards. The 'harpoon' clips the tubes in the tank and the 'hutch' mod fixes a lot of the air introduction to the suction of the fuel pump. I don't recommend dropping the tank just for the 'harpoon', but if you're already in there, it's worth the 2 minutes to clip those PVC pipes.