Fuel tank upgrade

Its possible to put a 38 gallon tank from a 2017 in a 2014 crewmax limited?

 

Welcome to the forum.

Start here https://www.tundras.com/threads/07-14-38-gallon-tank-swap-install-thread.27144/

There's also a 46g option https://www.transferflow.com/46-gallon-toyota-tundra-midship-replacement-fuel-tank

 

Yes, a few of us have done it. Not a super easy job, but doable. If you have access to a lift, even better. See the above link for all the parts needed and a detailed install guide. It's very helpful. I ran into a couple issues, but got it figured out eventually. Good luck and welcome!

 

Interested as well, I was curious if you needed to weld on the crossmember on the 2014+