BELL CRANK PIVOT BRACKET

1941 - 1945, MB, GPW Technical questions and discussions, regarding anything related to the WWII jeep.
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Moultz
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BELL CRANK PIVOT BRACKET

Post by Moultz » Fri Apr 12, 2013 12:39 am

I have just had my frame sand blasted and found a masterpiece of welding performed by bubbas 3 year old son.

Please help me find the correct replacement so I can cut this off... I dont even want to look whats inside.

Does anyone know where to source a replacement to weld on?

Thanks!

Blair.


Moultz
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Re: BELL CRANK PIVOT BRACKET

Post by Moultz » Fri Apr 12, 2013 1:53 am

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Bill M
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Re: BELL CRANK PIVOT BRACKET

Post by Bill M » Fri Apr 12, 2013 6:09 am

Hello Blair,
I have not seen this boss as a replacement part so your best bet is a donor front axle assy with this part intact.
I know of other members who have done this job before but they are professional Auto engineers who have done this sort of repair as routine.
Have you tried Ron Fitzpatrick here on G503 to see whether he has some donor axle housings with this boss intact?
Good luck.
cheers
Bill.
Member of G503 since 1999


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cbennett
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Re: BELL CRANK PIVOT BRACKET

Post by cbennett » Tue Nov 05, 2019 10:00 am

I have a front axle where the pivot bracket isn't completely broken off, but the cross pin or pinch/cinch pin bosses are sheared off.

I've studied a bit and it looks like there are two varieties of this out there. Some a simple cross pin which I assume is pressed in. Some are slotted for a pinch bolt. This one just has a cross hole, no slot.

Could the main stud just be welded into the boss (yes I know this prevent future maintenance)

Can the cross-boss be weld repaired?

Has anyone ever found a source for this boss and had one welded back on? (I suppose a new one could be machined from bar-stock)

Thanks
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Adam
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Re: BELL CRANK PIVOT BRACKET

Post by Adam » Tue Nov 05, 2019 10:16 am

I have some of these in cut off from damaged axle assemblies, you would need to grind off the old welds, remove the stud as they are most likely worn and reweld it to your axle. Will post a picture later as I need to bead blast one.

Adam

cbennett
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Re: BELL CRANK PIVOT BRACKET

Post by cbennett » Tue Nov 05, 2019 12:49 pm

Thanks Adam.

I haven't bought this Jeep yet, but knowing that you have some spares and that it can be done makes me less nervous about buying it. I do have a good weld shop nearby.

-Cam
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rondo
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Re: BELL CRANK PIVOT BRACKET

Post by rondo » Wed Nov 06, 2019 7:51 am

Not sure where you're at but out here MB and GPW front axles are plentiful and i'd just swap it with another axle. For example I dug into mine and found a kingpin stud broke, an axle shaft was shattered inside, spindle threads all mashed in, and Bubba's 3 year old son :lol: was allowed to put in all the parts with a blow hammer :D
Assuming this one has good ring and pinion and everything cleans up inside like cake (and you want to run it), then sure a competent welder can fix this with the right parts. It should be the design with a key slot and I wouldn't weld the pin. This site has a bell crank repair kit that I used (and wow the axle needed it! The bearings had turned to dust because noone bothered to grease it since D-day.
42 GPW; 41WC6
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cbennett
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Re: BELL CRANK PIVOT BRACKET

Post by cbennett » Wed Nov 06, 2019 10:46 am

I'm in Northeastern Ohio. Nothing for MB's or GPW's is plentiful here!

I'll have to assess if and when I get this Jeep.

So who used the slotted pinch type bolt vs the tapered pin and when? Was this a Willys vs Ford thing or an early/late thing or both??

Thanks
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rondo
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Re: BELL CRANK PIVOT BRACKET

Post by rondo » Fri Nov 08, 2019 6:50 am

I hope we are talking about the same thing. On this site there is a bell crank repair kit and video linked on how to install it on you tube. it used a woodruff key and tapered new shaft. My 42 had this design. Not aware of any other designs. The shaft doesn't need to be welded. If the key doesn't line up perfect it may have to be removed and re inserted and / or turned slightly. the video made it look easier than I found it to be :D
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Adam
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Re: BELL CRANK PIVOT BRACKET

Post by Adam » Fri Nov 08, 2019 8:40 am

If you dont buy the jeep send me the info on it, I may be interested.

I have never seen a slotted pinch type, just looked at 11 axles from various timelines and they have the solid one.

Anyway for the guy who has everything, this one had a long tapered pin with threads for holding it in. It didnt work as the shaft wobbles in the hole. PO tried to braze it in.
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Adam
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Re: BELL CRANK PIVOT BRACKET

Post by Adam » Fri Nov 08, 2019 8:41 am

Heres the one most of them have installed out back here. Kinda tough to get out. Do it on the workbench or a big vice before welding it on.
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donk_316
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Re: BELL CRANK PIVOT BRACKET

Post by donk_316 » Sat Nov 09, 2019 3:49 am

Is that what it’s supposed to look like?! Oh geez mine is one giant square block welded on. Maybe mines been bubba’d
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