I am planning on another tank for my Ram. I have looked around and decided on another Transfer Flow (I have their 54 gal replacement tank now). The design, fit, quality of welds, etc. are great. They clean the tank twice before powder coating and shipping.
I looked into the 38 gal aft axle tank but kinda like having the spare tire there and lots of clearance to the trail and for access to the diff. I'm leaning toward an in-bed tank and thinnking seriously about the aluminum diamond plate--no rust or crud collecting in the tank, and less heat absorption during the Las Vegas summers.
I realize you can't go for the 38 gal but even though I could, the in-bed tank is attractive for the above reasons plus the cost per gallon capacity gained. I once had a [censored] in-bed tank, but it kept rusting and developed a crack in the side near on of the internal baffles. Then, they refused to honor their warranty. To make a long story short, I'm tired of trying to shop for cheapest price in these tanks because best value works better for me. I ended up replacing so many fuel filters with that [censored] tank, and adding a bulk tank replaceable Fleetguard filter too. I have heard of and seen another [censored] brand that is prone to bad welds and sometimes leftover crud in the tank. My injection pump doesn't need the "extra goodies" and leaks are a real hassle, especially after the tank has held flammables.