Seacraft or Tracker?

[Capt Terry]

I ordered a 47 gallon tank from RDS about ten years ago for my '76 Seafari 20. I provided them drawings I made using the original dimensions. Everything was good except the bottom of the tank was not quite planar; there was a bit of a bow apparently at the weld for the baffle. I had to do some grinding where the tank sat and on the underside of the fuel hatch , as well as add rubber spacers, like a gasket, around the perimeter under the hatch to provide clearance with the fuel fill line. If space is tight and height could be an issue in your application, you might reduce the requested tank height a bit.