Gordo,
I put a 52 gallon Titan replacement in an ‘07 classic Silverado CCSB. That tank doubled my capacity from the 26 gallon factory tank and I liked it a lot.
This time around I was looking for more capacity in my ‘20 Silverado CCSB SRW 3500 which has factory capacity of 36 gallons. The replacement tank is a lot of $$ for the 50% increase in volume. Having gone with the auxiliary tank I now have 86+ capacity because the tank holds just at 52 gallons with an air space. I have a Backflip hard folding tonneau that covers it when folded forward for 5th wheel and the front section flips up vertically to access the fill cap.
Did not go with a gravity feed system as I was told they are prohibited by the DOT, and deemed unsafe.
Mike
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