I have been researching larger capacity fuel tanks and found Aerotanks in CA which looks to be a very high quality product, but not available in my area, Upstate Western New York.
Having trouble googling this topic. When I emailed Aerotank, they suggested looking for Super Tanker? Unable to find themn googling.
What can anyone tell me who have replaced their stock fuel tank with a larger capacity tank ? :D I am looking at a 07/08 extended cab standard bed Duramax and the tank offered by Aerotanks replaces the stock 26 gallon tank with a 45 gallon tank. Thanks for your help.

Where abouts are you in WNY?

Are you looking for something like a titan tank. i just put one in my truck and its a 45 gallon tank. i got mine from nate dwyer at performance truck products.
http://dieselplace.com/forum/showvendors.php?

I didn't know that Nate was a dealer for Titan; that's good to know, thx!

titan is probably the best way to go for us here in NY because of the salt and sand they use for the winters.

Agreed, Titan is using a non-metallic shell. I'm on it......just not going to do it until Spring, unless I can find someone to install it?

Hamburg, outside of Buffalo

Just south and west of you, Colden.

SE, make that!

its really not that bad to install. the less fuel in the stock tank on removal the easier obviously.

I used to live on Eddy Road off Cole and Omphalius.

I'm not too far from there, live across from KB.

I use a $20 5 Gallon Plastic fuel can in the back of the truck to top off. Cheap!