Looking for an 20 gal aluminum fuel cell to replace my current 16 gal poly cell. I have looked at Summit, Jeg's, RCI, and Jaz.
Any body have links to other choices?

Try a real fuel cell like Fuel Safe or ATL. All the others are just liquid storage facilties that may or may not stay intact during an impact.

I've heard of the tabs breaking over time from vibration. Being welded to the tank could cause a serious safety threat if it splits on the fuel side.
I'll stick with plastic thank you.

RandyB..