gas tank

[monkey44]

Have a GMC 2500 4x4 Xcab short bed. Has a 26 gal gas tank that's always thirsty when I travel any distance. Wonder if anyone know of a after-market tank that is larger. Went to several (transfer-flow and others) that can't do the 2500 because it's too low (?) ... and needs a 2500HD. the 2500HD has a 2" lift kit ( I think) that gives enought clearance for the 45 gal tank. Can I just lift the 2500 4x4 with the 2" kit and then fit the 45 gal tank. Or, is there more to it??? thanks B

[Shaners]

You could always add an "in-the-bed" tank...

 

I don't know if a body lift would be enough because I don't know how the new replacement tanks attach to the truck.

[monkey44]

I travel with a truck camper on the back when I go camping. So, the in-bed model won't work. The manufacturers say the new gas tank will fit the 2500HD, not the 2500. (2003 PU)

 

The only difference I think between them is the lift... because the 2500HD needs height to allow for Diesel option and the Allison tranny... So, if that's true (and I can't seem to get an answer from Transferflow or GM) then a simple 2" lift will allow the larger tank... just trying to find out if anyone knows for sure...

[99-2door]

It is possible that the difference is the rating on the EVAP system. Check the sticker under the hood. It will show a maximum tank size that system can handle. The number of gallons given is typically larger on a heavier truck.