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Want my MB Serial #

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Scratch View Drop Down
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    Posted: 16 Aug. 2019 at 11:34pm
My '42 MB is missing the glove box door, and the plate on the frame behind the front bumper.  The number on the driver's side toeboard gusset, (which I think is called the ACM number?) is "I think"..... 207874.  (Which according to my research makes it a 1945...)  I don't have a title for this vehicle but the PO said it was a 1942.  What can I do to find more info on it and get a serial number for it.  I'd like to eventually get a title for it.

I know I can buy blank plates for it, but is it OK to stamp them myself if I ended up finding the serial number?


Edited by Scratch - 16 Aug. 2019 at 11:52pm
'43 GPW 93487 Black
'46 CJ2A 77632 White
'47 CJ2A 141681 Green
'48 CJ2A 156240 Red/Yellow
'48 CJ2A 181341 Red
'61 CJ5 123120 Tan
'76 CJ7 Camo
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jpet Quote  Post ReplyReply Direct Link To This Post Posted: 17 Aug. 2019 at 8:10am
I don’t think anyone can tell you the exact serial number using only an ACM tub number. They were not installed sequentially or in any detectable pattern, and no record was kept on which tubs went on what frame, at least none that I know of.

The fact that both the dash tag and the frame tag are missing is a clue that someone may have removed them to use on another Jeep.

I think the best you can so is use the ACM# to find an approximate serial number. I could be wrong. Good luck.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark W. Quote  Post ReplyReply Direct Link To This Post Posted: 17 Aug. 2019 at 8:39am
dataplates4u.com will stamp one of their reproduction (read perfect copies) plates with what ever number you need and it will appear exactly as the original numbers would have.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mrbill Quote  Post ReplyReply Direct Link To This Post Posted: 17 Aug. 2019 at 12:14pm
The only other serial number you could use to narrow the date would be would be on the engine itself, behind the oil filter (if it's a 638632 casting).  That would tell you the age of the engine at least.  Transmission usually has a date code stamped on it, too.  Again, no guarantee that ANY of the components are original to the frame.  There are threads on g503.com that go into detail about spotting features of the Willys frame.

Bill


EDIT2:  Do you have the deep mud exhaust (exits the rear of the jeep) fitted or an internal contracting parking brake?  Both are later features which would indicate it is not an early frame.

EDIT3:  IF you think the hood is original, you MAY be able to retrieve the registration number (applies when accepted by the government - not sequential) which would also give you a good idea of it's manufacture date.  See https://forums.g503.com/viewtopic.php?f=4&t=112487


Edited by mrbill - 17 Aug. 2019 at 2:17pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Scratch Quote  Post ReplyReply Direct Link To This Post Posted: 18 Aug. 2019 at 1:31pm
So after some more digging... I now see this is a GPW not an MB like I was told.  It has the stamped rectangular front crossmember, not the bent tubular one, it has the Square-ish machine gun mount not the stop sign shaped mount, and it has an embossed rear tool box door. (one is gone)  
Some weird info I found though from DATAPLATES4U.COM is:  

The early ACM bodies can be identified by the round depression for the tool locker latch, while the Ford GPW had a rectangular depression. 

They are talking about the rear fender tool boxes right? My GPW has a round depression on them...  From the ACM, it's looking more like a 1945 GPW not a 1942 MB like I was told.
'43 GPW 93487 Black
'46 CJ2A 77632 White
'47 CJ2A 141681 Green
'48 CJ2A 156240 Red/Yellow
'48 CJ2A 181341 Red
'61 CJ5 123120 Tan
'76 CJ7 Camo
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mrbill Quote  Post ReplyReply Direct Link To This Post Posted: 18 Aug. 2019 at 1:55pm
If the frame is a GPW, the serial number should be close to the front left (driver's side) upper shock mount.  If you know that you'll have a very good idea of the date or manufacture.

Bill

1945 GPW #268739
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Scratch Quote  Post ReplyReply Direct Link To This Post Posted: 18 Aug. 2019 at 2:12pm
I'm sure now that it is definitely a GPW.  It has the correct machine gun mount, hole-y rear crossmember, correct front crossmember, embossed tool box covers, embossed glove box floor... and Oh yeah... it has this on the head:




but I couldn't find a chassis number on the frame where you said... I used a wire brush to clean it off good and it doesn't look like there was any PO work done there...?  I saw from this page: http://www.sacarr.co.uk/mymvs/jeep/m201mb/m201mb1.htm that there should be a chassis number there, but I can't find one... I'll keep looking.


Edited by Scratch - 18 Aug. 2019 at 2:14pm
'43 GPW 93487 Black
'46 CJ2A 77632 White
'47 CJ2A 141681 Green
'48 CJ2A 156240 Red/Yellow
'48 CJ2A 181341 Red
'61 CJ5 123120 Tan
'76 CJ7 Camo
'03 TJ Inca Gold
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mrbill Quote  Post ReplyReply Direct Link To This Post Posted: 18 Aug. 2019 at 2:41pm
Sometimes they are very faintly stamped and the layers of paint obscure them.  Here's a photo that shows the location.  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mrbill Quote  Post ReplyReply Direct Link To This Post Posted: 18 Aug. 2019 at 2:43pm
Ford assembled GPWs in 5 different plants.  Richmond, CA; Chester, PA; Dallas, TX; Louisville, KY and the Rouge plain MI.  Some people have made a study of identifying the clues as to which plant a particular frame was stamped.  Here's a photo of my Dallas built GPWs serial.




Edited by mrbill - 18 Aug. 2019 at 2:48pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Scratch Quote  Post ReplyReply Direct Link To This Post Posted: 18 Aug. 2019 at 3:02pm
Originally posted by mrbill mrbill wrote:

Ford assembled GPWs in 5 different plants.  Richmond, CA; Chester, PA; Dallas, TX; Louisville, KY and the Rouge plain MI.  Some people have made a study of identifying the clues as to which plant a particular frame was stamped.  Here's a photo of my Dallas built GPWs serial.
Thanks, upon further inspection... it looks like there might be another piece of steel welded on top of the frame at that location.  I may have to peel it off if I want that chassis serial number.  
Does that number on the frame match the serial number of the vehicle on yours?

I forgot I found out it was a GPW now too.  I went back and looked on GPW numbers locations and it seems that the engine block casting SHOULD match the serial number unlike the MB's.  My engine block casting is GPW-93487 which shows it to be built in January of 1943.  

Assuming this is the original engine, which I think it is, this should be correct right?  Do other members' GPW's match from engine block to chassis to serial numbers?




Edited by Scratch - 18 Aug. 2019 at 3:24pm
'43 GPW 93487 Black
'46 CJ2A 77632 White
'47 CJ2A 141681 Green
'48 CJ2A 156240 Red/Yellow
'48 CJ2A 181341 Red
'61 CJ5 123120 Tan
'76 CJ7 Camo
'03 TJ Inca Gold
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mrbill Quote  Post ReplyReply Direct Link To This Post Posted: 18 Aug. 2019 at 3:30pm
Sometimes.  As delivered the GPW engine stamping and frame stamping matched.  These machines went through rebuild programs both domestically and abroad with little regard to putting the parts back on the jeep they originated from so there is no guarantee of a match.  

My GPW did not come with an engine and the plates had been removed from the glove box door.  I have a Ford head on a period correct 638632 engine casting that came from a Willys-powered welding unit.

Bill
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ol' Unreliable Quote  Post ReplyReply Direct Link To This Post Posted: 18 Aug. 2019 at 10:38pm
A look at Ray Cowdery's All-American Wonder Vol. II page 187 shows GPW 92884 with a Date of Delivery of Jan. 8, 1943.  GPW 95501 DoD Feb. 2, 1943.  So your engine, at least, was on a jeep likely delivered some time in Jan. '43.
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