willysmjeeps.com

If you are using the Ford body for your VIN then you should go with the GPW mounting system. Vice-versa if you are using the Willys frame number for your VIN.

A word of caution. The hat channels were originally filled with wood to reinforce them so the tub mount bolts would not crush the hat channel when tightened. I am assuming your hat channels have no wood in them. So if you bolt all the way through from above the floor skin to below the hat channel you should strengthen the hat channel with steel bushings for each bolt. Otherwise the tub bolts will loosen often as the jeep is driven.

CZ, with those numbers you have an MB with an MB body.

Here is a MB near yours with frame MB-431600 and body MB-216065.

http://g503.com/serial-numbers/view.php?record_id=4892

And another close one.

http://g503.com/serial-numbers/view.php?record_id=4790

Use the later composite body BOM and you will be close enough.

I do agree with WesK... reinforce those hat channels. I used a round steel pipe spacer on mine and welded it in place before spot welding the hat channel back on and cut in spacers for areas where I left the hat channel in place.

Thanks for the suggestions, guys,
I agree eith the spacer tube in the hat sections. I will find some tube and weld it around where it penetrates the tub floor, since the under side is a rusty/painted mess. Some fender washers on the top side will be another addition, authenticity be damned.

Thanks again for the help,

CZ