I put this one in my 58.
Tank's, Inc (Yes, the apostrophe bugs me too, but that is how they spell their name)
It is an easy one person installation because the flange on one side goes inside the frame, them I lift the other side and bolt it up. The put the bolts in the first side.
There is a center fill option as well, since that is what you want.
I am very pleased with it.
