The current set up is still factory for a diesel front 22 gallon up under the cab and rear 18 gallon was replaced with plastic four years ago after the thing collapsed. This is the third $2500 bill for the fuel pump and delivery system so a $1000 custom tank is obviously the better answer aside...
I currently own a 2000 chevy 3500HD cab and chassis regular cab with LPAK tool box and 10' dumping bed. I purchased the truck 8 years ago and have been fighting with the fuel system since. Water in the rear tank until moving the fill tube location, injector pump breakdowns due to water filters...