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u-bolts for drive shaft to differential?
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51coronet
Posted 2020-05-25 1:32 AM (#598749)
Subject: u-bolts for drive shaft to differential?


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Tried rock-auto, o-reily, ebay, autozone. Now asking here because none of the mentioned have u-bolts to connect the drive shaft to the differential.

Can anyone supply a part number or source for u-bolts for a 1957 Imperial?

Thanks a lot!
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56D500boy
Posted 2020-05-25 2:10 AM (#598752 - in reply to #598749)
Subject: RE: u-bolts for drive shaft to differential?



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51coronet - 2020-05-24 10:32 PM
Tried rock-auto, o-reily, ebay, autozone. Now asking here because none of the mentioned have u-bolts to connect the drive shaft to the differential.
Can anyone supply a part number or source for u-bolts for a 1957 Imperial?


Maybe because there originally wasn't any U-bolts?





(55-58UJointDefinitionDiagrams_1.jpg)



(55-58UJointDefinitionDiagrams_2.jpg)



Attachments
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Attachments 55-58UJointDefinitionDiagrams_1.jpg (120KB - 356 downloads)
Attachments 55-58UJointDefinitionDiagrams_2.jpg (122KB - 346 downloads)
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51coronet
Posted 2020-05-25 10:36 AM (#598759 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?


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Not true, your details dont have anything for the axle end. You are looking at the carrier(middle) up to the trans. I need ubolts for the diff to drive shaft. There were definitely bolts to hold the drive shaft to the axle and or bolt and clamp assembly to hold this area together.

Edited by 51coronet 2020-05-25 11:11 AM




(u bolt.jpg)



Attachments
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Attachments u bolt.jpg (73KB - 344 downloads)
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51coronet
Posted 2020-05-25 10:56 AM (#598761 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?


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I need correct clamp and hardware. My yoke is not threaded so nuts are needed on the bolt also which isnt represented in the picture
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udoittwo
Posted 2020-05-25 11:00 AM (#598762 - in reply to #598749)
Subject: RE: u-bolts for drive shaft to differential?


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I'm curious also. Mine has u-blots yet I couldn't find anything listed for the bolts. I looked under "propeller shaft" and "rear axle". How is the u-joint held to the flange?
Through bolts with a half retainer cup[what ever it might be called], studs, or is the flange threaded?
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51coronet
Posted 2020-05-25 11:16 AM (#598764 - in reply to #598762)
Subject: RE: u-bolts for drive shaft to differential?


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udoittwo - 2020-05-25 11:00 AM

I'm curious also. Mine has u-blots yet I couldn't find anything listed for the bolts. I looked under "propeller shaft" and "rear axle". How is the u-joint held to the flange?
Through bolts with a half retainer cup[what ever it might be called], studs, or is the flange threaded?


Mine is not threaded and is OEM from what I can tell. I got the car with the drive shaft disconnected and no hardware there at the axle. Now I am at the point to putting things together and nothing is listed for the axle to drive shaft as far as hardware goes. I picked up some cheby 1350 u joint bracket and bolt assembly but they arent a good fit. I can make it work but would prefer not to drill the holes in the new clamps to make it work. I also dont have correct length bolts on hand to make it work so if I am going to go buy something to "mickey mouse" this I might as well pick up the correct parts.
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56D500boy
Posted 2020-05-25 11:52 AM (#598768 - in reply to #598759)
Subject: Re: u-bolts for drive shaft to differential?



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51coronet - 2020-05-25 7:36 AM
Not true, your details dont have anything for the axle end. You are looking at the carrier(middle) up to the trans. I need ubolts for the diff to drive shaft. There were definitely bolts to hold the drive shaft to the axle and or bolt and clamp assembly to hold this area together.


So you didn't start with the "earred" U-joint at the differential end like the one shown in these photos (ignore the cut-line stuff)??





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Shep
Posted 2020-05-25 12:21 PM (#598770 - in reply to #598768)
Subject: Re: u-bolts for drive shaft to differential?



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Same on my 55 NEw Yorker, hard to get these days.
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Powerflite
Posted 2020-05-25 12:41 PM (#598772 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?



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Someone just started reproducing those flanged u-joints I think it was mopar-mall, but not sure. But if that's what you have, you'll just need some fine threaded grade-8 bolts & nuts to mount it. The round seats in the yolk are very shallow for this u-joint so that yolk isn't compatible with any other style of u-joint. If you have this, I recommend swapping out the yolk on the differential for a later version.

The typical U-bolt style that Chrysler used was for the 1330 joint. So if that's what you have, look up some u-bolts for that joint. You can tell which joint you have by measuring the cap diameter & length.
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Suddenlyits1960!
Posted 2020-05-25 12:51 PM (#598774 - in reply to #598768)
Subject: Re: u-bolts for drive shaft to differential?



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56D500boy - 2020-05-25 11:52 AM

51coronet - 2020-05-25 7:36 AM
Not true, your details dont have anything for the axle end. You are looking at the carrier(middle) up to the trans. I need ubolts for the diff to drive shaft. There were definitely bolts to hold the drive shaft to the axle and or bolt and clamp assembly to hold this area together.


So you didn't start with the "earred" U-joint at the differential end like the one shown in these photos (ignore the cut-line stuff)??







I had this same “eared” rear u-joint on a 57 Dodge Coronet 20 some years ago. They are hard to find. Nobody local had one. I ended up finding an NOS one from Andy Bernbaum auto parts.
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Suddenlyits1960!
Posted 2020-05-25 1:01 PM (#598778 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?



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“Powerflite” is right! Just checked mopar mall and they do indeed now offer a repro of the “eared” style rear unjoint for our cars!


https://www.moparmall.com/1603998-1752680-1752623-Universal-Joints-D...
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56D500boy
Posted 2020-05-25 4:00 PM (#598786 - in reply to #598778)
Subject: Re: u-bolts for drive shaft to differential?



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Suddenlyits1960! - 2020-05-25 10:01 AM

“Powerflite” is right! Just checked mopar mall and they do indeed now offer a repro of the “eared” style rear unjoint for our cars!


Maybe. I didn't have good luck with Mopar Mall. I bought what was supposed to be an NOS "eared" u-joint from them and it was obviously a USED greasy U-joint that someone in the past had put in a NOS box and put on a shelf and forgot that it was used and nobody at Mopar Mall checked before they sent it out to me. I returned it for a refund but I am sure that they think that I scammed them. I DID NOT.

The next guy might get lucky and get a good one. I swapped my 56 Pinion Flange out for a 58 pinion flange and am now running a Moog 315G U-joint.

What I got from Mopar Mall (and sent back):



What I am running now:



REFERENCE: http://www.forwardlook.net/forums/forums/thread-view.asp?tid=69669&...



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Mikeb
Posted 2020-05-26 11:07 PM (#598820 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?


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Has anyone found a U-joint that will accept the old eared bearing caps. I tried the Moog 315G but it is .01" too big and the cap will not fit. Looking for a U-joint part # that has the same outside dimensions of the 315G but is .01"smaller inside.
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56D500boy
Posted 2020-05-26 11:23 PM (#598821 - in reply to #598820)
Subject: Re: u-bolts for drive shaft to differential?



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Mikeb - 2020-05-26 8:07 PM
Has anyone found a U-joint that will accept the old eared bearing caps. I tried the Moog 315G but it is .01" too big and the cap will not fit. Looking for a U-joint part # that has the same outside dimensions of the 315G but is .01"smaller inside.


Based on my experience, the only way to run a more modern non-earred rear U-joint is to change the pinion flange to a 58 style pinion flange. By 58 they had mostly done away with the earred U-joints. I tried the Moog 315G in my OE 56 Pinion flange and the only way it would work would have been if I had some spacers machined - Or a bunch of stacked flat washers but that was too sketchy for me thanks. I went with a 58 Dodge pinion that I found as NOS (never been on a car).



Edited by 56D500boy 2020-05-26 11:25 PM
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Powerflite
Posted 2020-05-26 11:44 PM (#598824 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?



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He's talking about swapping the old flanged caps onto the new u-joint. You could take your old caps to a machine shop and machine them out to the bigger size. That would also eliminate any wear that might have been on them too.
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51coronet
Posted 2020-05-27 2:16 PM (#598838 - in reply to #598821)
Subject: Re: u-bolts for drive shaft to differential?


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56D500boy - 2020-05-26 11:23 PM

Mikeb - 2020-05-26 8:07 PM
Has anyone found a U-joint that will accept the old eared bearing caps. I tried the Moog 315G but it is .01" too big and the cap will not fit. Looking for a U-joint part # that has the same outside dimensions of the 315G but is .01"smaller inside.


Based on my experience, the only way to run a more modern non-earred rear U-joint is to change the pinion flange to a 58 style pinion flange. By 58 they had mostly done away with the earred U-joints. I tried the Moog 315G in my OE 56 Pinion flange and the only way it would work would have been if I had some spacers machined - Or a bunch of stacked flat washers but that was too sketchy for me thanks. I went with a 58 Dodge pinion that I found as NOS (never been on a car).


That gap is pretty much what I am dealing with and the holes on the clamp are slightly narrow or wide compared to the axle yoke by maybe .1 inch (don't remember)

So changing out the yoke seems like the best solution....
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56D500boy
Posted 2020-05-27 3:24 PM (#598840 - in reply to #598838)
Subject: Re: u-bolts for drive shaft to differential?



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51coronet - 2020-05-27 11:16 AMThat gap is pretty much what I am dealing with and the holes on the clamp are slightly narrow or wide compared to the axle yoke by maybe .1 inch (don't remember)
So changing out the yoke seems like the best solution....


Changing the yoke worked for me. Along the way to that decision, while searching for 7260 "Small Mopar" u-joints, I did but into things like this (with U-joint U-clamps) so they are out there (somewhere):

I think that you might get lucky if you look for Dana Spicer U-joint stuff like this one at the Bronco Graveyard:

https://shop.broncograveyard.com/Dana-Spicer-U-Bolts-for-1410-Series...



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Mikeb
Posted 2020-05-28 5:05 PM (#598909 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?


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I was hoping someone had found a joint that would accept the old, eared caps but if not I will most likely go with the one Birnbaum has.
Thanks
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51coronet
Posted 2020-06-07 2:04 AM (#599360 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?


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Fixed. Ordered a Mopar P4876803 8-3/4 Iron 10 spline Rear End Yoke W/ Straps 8.75" Dodge 7260 from ebay. Everything fits nice and snug and no gap in the u-joint strap. The 7260 has snap rings that line it up center inside the new yoke and straps. I almost pulled them off because I thought they were in the way. Glad I didnt because they are integral to getting it all centered up. Anyone need a stock yoke from an imperial? I plan on trying to sell it. Its in really good shape because of the thick layer of greasy dirt that preserved it. Soaked it in gas for a few hours and all the crud wipes right off.
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Manifest Predicament
Posted 2022-01-30 6:54 PM (#618899 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?



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Going from the stock 56 yoke 8.75" to this 57-58 style, would it need additional shims or adjustment or just a simple remove and replace using a good puller?
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56D500boy
Posted 2022-01-30 7:15 PM (#618900 - in reply to #618899)
Subject: Re: u-bolts for drive shaft to differential?



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Manifest Predicament - 2022-01-30 3:54 PM
Going from the stock 56 yoke 8.75" to this 57-58 style, would it need additional shims or adjustment or just a simple remove and replace using a good puller?


I don't know about the 8 3/4" rear diff but when I had a 57-58 Pinion flange/yoke installed in my 1956 8 1/4" rear diff (while they were replacing the seal), the shop had to find a spacer washer to make things work. (Not sure if you would need it or not).

This:





REFERENCE: http://www.forwardlook.net/forums/forums/thread-view.asp?tid=69669&...



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Manifest Predicament
Posted 2022-01-31 4:22 PM (#618919 - in reply to #618900)
Subject: Re: u-bolts for drive shaft to differential?



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Thanks for the spacer to keep in mind. I'll certainly post here if it turns out I need it.. Called Benny Buckner in Vest Virginia and he's looking for that yoke. Says he has a 58 Saratoga that may be the same.
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56D500boy
Posted 2022-01-31 11:18 PM (#618931 - in reply to #618919)
Subject: Re: u-bolts for drive shaft to differential?



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Manifest Predicament - 2022-01-31 1:22 PM
Thanks for the spacer to keep in mind. I'll certainly post here if it turns out I need it.. Called Benny Buckner in Vest Virginia and he's looking for that yoke. Says he has a 58 Saratoga that may be the same.


Be aware that if the Saratoga yoke is worn (a groove from the seal rubbing), you might have to install a SpeediSleeve, like this one, about to be banged on using that cap as a "drift".

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Manifest Predicament
Posted 2022-02-18 10:25 AM (#619520 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?



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50D500boy, A typical steering wheel puller should get that yolk off shouldn't it?
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56D500boy
Posted 2022-02-18 11:23 AM (#619521 - in reply to #619520)
Subject: Re: u-bolts for drive shaft to differential?



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Manifest Predicament - 2022-02-18 7:25 AM
50D500boy, A typical steering wheel puller should get that yolk off shouldn't it?


Not sure who 50D500boy is but I will try to answer your question.

A steering wheel puller might work but it might be too weak. This is an image of the official Mopar Flange Removal Tool C-452 in action. Real C-452s are still out there
for sale if you find that your steering wheel puller can't cut it.





Edited by 56D500boy 2022-02-18 11:26 AM




(UsingToolC452ToRemoveTheRearDriveFlange.jpg)



(UsingToolC452ToRemoveTheRearDriveFlange_2.jpg)



(C452CompanionFlangePullerSetOnAmazon.jpg)



Attachments
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Attachments UsingToolC452ToRemoveTheRearDriveFlange.jpg (108KB - 119 downloads)
Attachments UsingToolC452ToRemoveTheRearDriveFlange_2.jpg (99KB - 112 downloads)
Attachments C452CompanionFlangePullerSetOnAmazon.jpg (58KB - 127 downloads)
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Powerflite
Posted 2022-02-18 11:44 AM (#619524 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?



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It doesn't typically need a puller. You can usually get them off with just a few taps.
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56D500boy
Posted 2022-02-18 12:39 PM (#619526 - in reply to #619524)
Subject: Re: u-bolts for drive shaft to differential?



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Powerflite - 2022-02-18 8:44 AM
It doesn't typically need a puller. You can usually get them off with just a few taps.


Nathan: On a related note, what do you think about this tool (from the 57 Dodge FSM) showing the removal of the big flange nut. Doesn't look like there is much torque involved. I thought that it needed a big (30") breaker bar or an impact wrench.

(??)





(CompanionFlangeNutRemovalTool.jpg)



Attachments
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Attachments CompanionFlangeNutRemovalTool.jpg (113KB - 123 downloads)
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Powerflite
Posted 2022-02-18 12:50 PM (#619527 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?



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I've tried getting the yolk off my '70 Satellite without air tools once. It was practically impossible. The pathetic 2-handed operation there would be a complete failure. You can literally drive the car around with the torque that's required to pull that off. A heavy impact tool is definitely the way to go.
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Manifest Predicament
Posted 2022-02-18 12:52 PM (#619528 - in reply to #598749)
Subject: Re: u-bolts for drive shaft to differential?



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Thanks 56!! Sorry for the typo but Yes I was addressing you as you covered so much on this helpful thread. Hope it comes off with a couple taps but doing this from the road so wanted to have everything.
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