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Discussion starter · #22 ·
Original intermediate shaft. Notice the green paint. It looks factory. Even the universal joint end caps are green. So I believe it to be original.

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The original universal joint I took out.

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Spicer doesn't fit. No matter how I move it around. Believe me I tried all combinations.

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Measurement of the yoke. 2.115 inches

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Measurement of the original universal joint. 2.873 inches

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Measurement of the Spicer universal joint. 2.940 inches

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Picture of the Spicer measurement against the original universal joint. Notice the gap.

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I measured the front drive shaft grease-able end. 2.116 inches

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Measurement of the non-grease-able end. 2.121 inches

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So this difference of 0.067 does not allow the greaseable end of the drive shafts to be used with the Spicer 5-789X universal joint.

Looking online the 2266909 universal joint is 7260.
 
The shafts were not painted from the factory.
 
Do not add more grease.

Obviously its a ujoint issue since the cross dimensions are so different.

Go ahead and order a spicer greasble or head to ebay and get a NOS detroit/mopar u joint. One of my trucks, either the 88 or the 92 had the same problem in the rear of the rear driveshaft. Nothing was bent, just cant use the nongreasable for some reason on certain positions.
Heres the one you just pulled out
https://www.ebay.com/itm/MOPAR-NOS-3780250-Universal-Joint-U-Joint-Dodge-Plymouth-Chry-70S-In-Plastic/372867643280?epid=1922928304&hash=item56d0a4b790:g:yZUAAOSwtEZdNIzH:sc:USPSPriorityMailPaddedFlatRateEnvelope!04556!US!-1
I know I said to use the non greasble before- theres no rhyme or reason why the problem you have occurs. but its easy to fix t least. Just a big head ache.

Heres the spicer greasble
https://www.ebay.com/itm/Dana-Spicer-5-1306X-7260-Series-Dodge-Universal-Joint-CP1306X-2298908-2298908/143401029932?epid=174574266&hash=item21635e112c:g:iRsAAOSwBYpdlcTe
 
Discussion starter · #29 ·
jerseybud said:
Do not add more grease.

Obviously its a ujoint issue since the cross dimensions are so different.

Go ahead and order a spicer greasble or head to ebay and get a NOS detroit/mopar u joint. One of my trucks, either the 88 or the 92 had the same problem in the rear of the rear driveshaft. Nothing was bent, just cant use the nongreasable for some reason on certain positions.
Heres the one you just pulled out
https://www.ebay.com/itm/MOPAR-NOS-3780250-Universal-Joint-U-Joint-Dodge-Plymouth-Chry-70S-In-Plastic/372867643280?epid=1922928304&hash=item56d0a4b790:g:yZUAAOSwtEZdNIzH:sc:USPSPriorityMailPaddedFlatRateEnvelope!04556!US!-1
I know I said to use the non greasble before- theres no rhyme or reason why the problem you have occurs. but its easy to fix t least. Just a big head ache.

Heres the spicer greasble
https://www.ebay.com/itm/Dana-Spicer-5-1306X-7260-Series-Dodge-Universal-Joint-CP1306X-2298908-2298908/143401029932?epid=174574266&hash=item21635e112c:g:iRsAAOSwBYpdlcTe
I bought Moog 246 Super Strength. They are installed now.
 
Discussion starter · #30 ·
DODGEBOYS said:
2.125 is the yoke spread and your at 2.116 / you bent it , l,ve had it happen a few times by either not supporting it right or use,in a press
That would mean all of them are bent. The front and the rear, but I can install the Spicer on the end that is non greaseable.
 
well l pulled out and dusted off the 1972 to 1975 dodge truck parts book to look it up , so the original ujoint number is # 3780-250 which interchanges with the 7260 series ujoint which is a # 5-789x which technically is the ujoint your try,in to install , BUT heres the kicker SPlCER changed the ujoint design since the original , if you look at the MOPAR/Spicer stock ujoint from 1973 its the SMALL body ujoint compared to the NEW style LARGE body / in the link below the Ebay seller has two left and you better get them fast

https://www.ebay.com/itm/MOPAR-NOS-3780250-Universal-Joint-U-Joint-Dodge-Plymouth-Chry-70S-In-Plastic/372867643280
 

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Discussion starter · #33 ·
DODGEBOYS said:
well l pulled out and dusted off the 1972 to 1975 dodge truck parts book to look it up , so the original ujoint number is # 3780-250 which interchanges with the 7260 series ujoint which is a # 5-789x which technically is the ujoint your try,in to install , BUT heres the kicker SPlCER changed the ujoint design since the original , if you look at the MOPAR/Spicer stock ujoint from 1973 its the SMALL body ujoint compared to the NEW style LARGE body / in the link below the Ebay seller has two left and you better get them fast

https://www.ebay.com/itm/MOPAR-NOS-3780250-Universal-Joint-U-Joint-Dodge-Plymouth-Chry-70S-In-Plastic/372867643280
That number on the back of the link is the same as the green ujoint I posted above. That one fits great.

Thank you for looking it up. I appreciate it. I hope this helps others in the future.

Also, thank you to everyone else who provided input along the way!.
 
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