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post #1 of (permalink) Old 04-09-2008, 05:51 AM Thread Starter
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Question MB body mount

Yesterday a guy brought over a replacement tub for his '55 MB restoration project. One of the body mounts is in the wrong place by a couple of inches and I'm going to fix it up for him. It's a channel of bent 16-gauge sheet running side to side approximately at the middle of the bed. It's a couple of inches wide and about 7/8" tall. What's surprising is that there's a nicely-fitted full-length piece of wood inside the channel. There are similar pieces of wood inside some other channels farther forward under the body.

My guess there is that it's a cheap and fast way of fastening the body to the frame. All they would have to do is set the body on the frame and then run a self-drilling screw through the frame, rubber biscuit, drill through the channel and into the wood. Seems like a way they might have done it for the military where the vehicle is only expected to last for a couple of years. It's cheaper than welding a nut in place, and there's no need to align things carefully or start a bolt into the threads of a nut. Anybody know anything about that?

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post #2 of (permalink) Old 04-09-2008, 08:05 AM
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Intersting... The Factory MB wasn't that way, IIRC. There is nothing I can find in the manuals about those blocks. The tub to frame attachment would be compromised. There was wood filler in the front bumper,but that's about all I can find.

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post #3 of (permalink) Old 04-09-2008, 09:02 AM Thread Starter
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Well, I'm in a quandry. Those mounts will be OK because I'm going to set up new ones - I'll put a captive nut inside the channel, but don't know how to handle the others that have wood inside. There's no way to get a nut into the space, and the wood will be a terrible rust creator when it gets wet and stays that way.

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post #4 of (permalink) Old 04-10-2008, 11:00 AM
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I can ask a friend who has an MB what his looks like. However, I assume that you meant a 45 MB and not a 55 MB, correct? Or is it a 55 M38A1?

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post #5 of (permalink) Old 04-10-2008, 11:14 AM Thread Starter
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Yeah, brain fart! It's an M38A1. He has an uncle who has an MB we were talking about.

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post #6 of (permalink) Old 04-11-2008, 09:29 AM
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I'll try to remember to look under my 55 M38A1 too.

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post #7 of (permalink) Old 04-11-2008, 12:14 PM Thread Starter
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Thanks, Will. I'd appreciate that. The guy is goinf to beback this afternoon or tomorrow.

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post #8 of (permalink) Old 04-13-2008, 07:58 PM
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I couldn't see inside that channel with the tire on.

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post #9 of (permalink) Old 04-13-2008, 09:02 PM Thread Starter
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There are similar pieces of wood in some of the channels under the seats. Can you see them?

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post #10 of (permalink) Old 04-15-2008, 02:59 PM Thread Starter
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On another BBS the guy found out that some were built with wood in them, and some were not, but nobody could say what the wood was for.

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