[darrellyates]

Well, mine isn't a 4x4 so I'm not speaking exactly from experience, however...

I did buy a complete floor for my regular low hump 2x4. I got it from Chuck Hutchinson at Truck Haven near Shelbyville TN. I think he sources his parts from Southern Kentucky Classics in Bowling Green KY. They have the same parts, and he uses their price book...

Mine fit nearly perfectly. drilled out the factory welds, positioned the floor, drilled and plug welded the factory spots. Very little fabrication, just a little trimming here and there. It was a very good fit.

Just my 2 cents worth. I also had good luck with a Goodmark floor in a Camaro. I believe most floors are pretty close, although I am sure others will disagree.

Good Luck!