Join Date: Dec 2001
Location: Belleville, Illinois
Thanked 22 Times in 17 Posts
Are you going to do the whole floor, or just a part of it? In any case, I don't think diamond plate is a good idea - it's too thick. It will be hard to cut, hard to bend, hard to weld, hard to weld to the existing sheet metal, and because it's so stiff, it will fatigue crack the sheet metal where they're joined.
If you're doing this for rust repair, I think you'd be much better off doing a tub swap. You can get a new CJ tub from Willys-Overland, a YJ tub off E-Bay, a fiberglass tub, or do what I did. All would be easier and give better results than a diamond plate floor. If it's rust repair you're into, there's probably other damage too, under the roll bar, in front of the door openings, in the rear crossmember . . . After a new floor, you'll only be half done.
As for patterns, I've never seen one. You'll probably have to make your own from sheets of butcher paper.