Tandem Towbar |
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Ford GP
Member Joined: 13 May 2008 Location: Ohio Status: Offline Points: 255 |
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Posted: 06 May 2016 at 5:15pm |
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I have seen Harveys Towbars. They are pretty much indistinguishable from an original, except for the fact they are so clean and shiney. I imagine if he buried it for a few months, that could be fixed too .
Anyway, you may want to touch base with him before you start your project. I am sure he can help with advice and parts. Brian |
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harvey
Member Joined: 26 Feb. 2010 Location: so cal Status: Offline Points: 13 |
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I sell reproduction Tandem Tow bar made to the military specifications along with all the proper mounting hardware and the wooden block.
you can Email me for pictures and price. Harvey |
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The Little Buckaroo
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harvey
Member Joined: 26 Feb. 2010 Location: so cal Status: Offline Points: 13 |
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Howdy,
Well I've been building the tandem tow bars for quite some time now and have sold
them at various military jeep meets such as the Towers meet up in Lodi, California.
I'm in the process of putting together a kit that you can assemble. It will contain all
the parts necessary to build it along with instructions. Additionaly, I have had the
wooden block manufactured that mounts to the grill and holds the tow bar in place
when not in use. Also a repoduction of the data plate that mounts on the dash.
My tentave date for completion for kit availability will be some time in late April.
These are built from the orignal miltary specifications.
Thanks
The Little Buckaroo
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The Little Buckaroo
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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This is the latest and greatest. The lunnette eye is still controversial. Since the average hole diameter seems to be 2-1/2", that is what I am going with. I'll let this drawing sit for a couple days and if I don't get anymore feedback, I'll start drawing up the individual part drawings. It will be a while before I can start to make one since I have other jeep projects going on.
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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RA472A
Member Joined: 15 Nov. 2005 Status: Offline Points: 367 |
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Shank is 1.25"
f 1.68" d 3.50" e .75" g 1.25" Edited by RA472A - 14 Dec. 2009 at 4:10am |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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Thanks
What is the OD of the shank on the lunette eye?
And .... do you have any measurements on this piece?
Thanks
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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RA472A
Member Joined: 15 Nov. 2005 Status: Offline Points: 367 |
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Jeff,
I checked lunnette eye measurements on a different NOS towbar and it is also 2.50" I.D. and 4.50" O.D. I'm still looking for my old Army Motors article with mounting instructions. |
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russnj
Admin Webmaster Joined: 20 July 2005 Location: W. Windsor, NJ Status: Offline Points: 3943 |
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Jeff, I will double check my measurements on the eyebolt. But remember that is the part that will get most wear, so a well use one will have a bigger hole and ring will be thinner.
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43 MB, 48 CJ2A, 50 CJ3A, 55 M38A1, 56 CJ5, 79 M151A2, M100 ,65 M416 |
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RA472A
Member Joined: 15 Nov. 2005 Status: Offline Points: 367 |
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Dimension C is 4 3/4-4 13/16" There is so much weld "splatter" in this area, it's hard to get it right on.
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jpet
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What do you have for dimension "C" on the eyebolt?
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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RA472A
Member Joined: 15 Nov. 2005 Status: Offline Points: 367 |
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On mine, the lunnette eye inner hole dia. is 2 1/2" and outer dia. is 4 1/2". There is a good article in an Army Motors on mounting the towbar and additional plates needed if mounting to an existing bumper like is on my M38. If you want, I can send it to you.
I'm sure the rivets are 3/8 Edited by RA472A - 12 Dec. 2009 at 4:52pm |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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I'm getting a little closer:
These dimensions are a composite of three tow bars, russnj, 11aces, jeepfreek. None of the three are exactly the same so I choose dimensions where 3 of 3 match, 2 of 3 match, or a nominal dimension that made sense.
These dimensions are still up for debate though if anyone wants to join in.
I have pretty big discrepancies on the size of the eye bolt:
On Russ's the "A" dimension is 2-1/16" and on Jim's it is 2-3/4".
I wouldn't mind getting some more feedback on these dimensions
Also, I need some dimensions on this inner gusset that the eyebolt welds to:
Are all the rivets the same size? If so, what size
Finally, I could use some dimensions on these rivet locations:
Thanks again. At your leisure please. Edited by jpet - 12 Dec. 2009 at 4:05pm |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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11acs
Member Joined: 23 Aug. 2008 Location: mcminnville, or Status: Offline Points: 640 |
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The tapers on the ends of the bumper tube are welded at about 6" in. from end. The holes in the end of the tube are 1" tapering in to about 7/8"
The angle piece that joins two assemblies the tube rotates in is 1 1/2" x 1/4" x 32 3/4" Mine looks like it had a chain wrapped around it & bending it up by Bubba. Should be not too hard to replace. You are correct that the "stop" flanges are 1/4" x 1/8" , I was wrong. |
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Victor
48 CJ2a 42 MB 45 CJ2a IH 1210 PU Interstate S-1a Cadet |
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11acs
Member Joined: 23 Aug. 2008 Location: mcminnville, or Status: Offline Points: 640 |
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I'll take another look in a few minutes & take photos and try to answer the above questions. I might be off on the flange measurement. Mine is an original, but has an a-frame tongue coupler tacked on in place of the ring which was sawed off flush with the end of the assembly.
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Victor
48 CJ2a 42 MB 45 CJ2a IH 1210 PU Interstate S-1a Cadet |
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jpet
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Yep we are good there.
??? Not sure what you mean. maybe a pic would be good
Victor. Thanks for the info. At your convenience (and when it warms up a little) some pictures would be nice. Preferably the pictures would be straight on to avoid as much parallax as possible and with a tape measure or scale in the pic for scaling.
The dimensions I have posted are from Russ's which is original. Is your's an original?
Thanks again and do this at your leisure.
jpet Edited by jpet - 11 Dec. 2009 at 5:16pm |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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11acs
Member Joined: 23 Aug. 2008 Location: mcminnville, or Status: Offline Points: 640 |
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I have 2" from the start of the taper to the end on the main tube. The flange that bolts to the frame bracket is 2".
The main beam is 21/4" across horizontally and 23/4" vertical measurement. There is a 1/2" high flange welded to the tube on each side of your 20.50 measurement. My overall length of the tube is 46" The plate measurement you have at 3" is 31/2" on mine. It's warmed up to 14 degrees, but my fingers couldn't take any more. I can bring out the calipers in a little while & get the thickness measurements. I can take some closeup photos if you want. There is a piece of formed angle that joins the two flanges that bolt to the frame brackets that you don't have on your drawing. |
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Victor
48 CJ2a 42 MB 45 CJ2a IH 1210 PU Interstate S-1a Cadet |
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jpet
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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jpet
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Some of these dimensions are not right but it is a start. What is the overall length of the bumper pipe?
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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