2003+ Express/Savana auxilary tank options

[karma]

Hello,

Looking for suggestion on retrofitting auxiliary tank where the spare wheel goes. I have a 2013 duramax extended wheelbase van. The off the self options are expensive $1k+, so want to see if any of you have successfully retrofitted tanks from other vehicles and how you plumbed it.

Have been using the scepter tanks as a backup on trips, but it's a hassle.

Thanks.

[WhitH]

I think some cutaway chassis had rear mount tanks but I'm not certain. You've likely looked in that direction, but if not then I'm sure a used one could be had pretty inexpensively. What size is your current tank?

[karma]

Originally Posted by WhitH

I think some cutaway chassis had rear mount tanks but I'm not certain. You've likely looked in that direction, but if not then I'm sure a used one could be had pretty inexpensively. What size is your current tank?

The stock tank, i think is 30 gallons.

[WhitH]

Yep same for me. Cut away could be the way to go. I moved my spare up to my bumper and have that space available as well. I’ve considered it but I feel like my fuel economy is decent enough I decided against. May go with a storage box.

[Adventure Driven]

I would love to know what gets figured out on this, we would love to have more fuel with us.

Seth

[vintageracer]

NOT CHEAP however they work GREAT!

I have this system on my 4WD Chevy Express 3500 Van. Fits under the van where the spare tire mounts. I now have 70 gallon capacity for fuel.


https://www.transferflow.com/

[Adventure Driven]

Originally Posted by vintageracer

NOT CHEAP however they work GREAT!

I have this system on my 4WD Chevy Express 3500 Van. Fits under the van where the spare tire mounts. I now have 70 gallon capacity for fuel.


https://www.transferflow.com/

Awesome, do you remember what part # you went with ?

Seth