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Re: '56 Imperial Rear Pinion Seal C-73
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ybshore
Posted 2018-09-06 7:22 AM (#569680)
Subject: Re: '56 Imperial Rear Pinion Seal C-73


Member

Posts: 10

Older (pre '57) 8-3/4 diffs will not fit into the true 8-3/4 ('57 and later) axle housing. The axle housing has a different bolt pattern for the carrier, the axles have different splines, and the axle bearings are all different. I've been looking for the pinion seal for my '56 Imperial and can't find a source. It's 2 5/8 ID x 3 1/2 OD. Can anyone send me to a lead? TY.
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jboymechanic
Posted 2018-09-06 2:17 PM (#569696 - in reply to #569680)
Subject: Re: Re: '56 Imperial Rear Pinion Seal C-73



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Location: Muskego, WI
You may have to look up your part by size, sounds like you've already disassembled and measured? I'd look on SKF's website for a seal in the size you need, order it and see if it matches. These seals are usually pretty cheap.

Another option is to go to Andy Bernbaum, I've had good luck with them. Here is a link to their site, they list the seal at $35 plus shipping. Expensive, but I'm willing to bet it will be correct.
https://www.oldmoparts.com/parts-rear-axle.aspx


As a fellow '56 Imperial owner, I'm curious about your car. What body style? Which trans? What kind of condition is it in?
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57chizler
Posted 2018-09-06 2:35 PM (#569698 - in reply to #569680)
Subject: Re: '56 Imperial Rear Pinion Seal C-73



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Posts: 3036
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Location: NorCal
Going by the dimensions you gave (2.625" X 3.500"), the following CR seals should work; 26177, 26186, 26189, 26190, 26191.

26191 and 26190 are .438" wide, the others are .375" wide.

26186, 26190 and 26192 are the 2-lip design.

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60 dart
Posted 2018-09-06 3:42 PM (#569703 - in reply to #569680)
Subject: Re: Re: '56 Imperial Rear Pinion Seal C-73



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Posts: 8449
50002000100010010010010025
Location: WHEELING,WV.>>>HOME OF WWVA
https://www.ebay.com/p/Rear-Axle-Pinion-Seal-1937-1957-Dodge-Plymout...


https://www.rockauto.com/en/parts/skf,18880,differential+pinion&...

Edited by 60 dart 2018-09-06 3:55 PM
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56D500boy
Posted 2018-09-06 6:36 PM (#569717 - in reply to #569703)
Subject: Re: Re: '56 Imperial Rear Pinion Seal C-73



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Posts: 3703
20001000500100100
Location: Lower Mainland BC


Rock Auto:

Width (in) 0.5
Shaft (in) 1.875
Bore (in) 3.105
Outer Diameter (in) 3.11
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ybshore
Posted 2018-09-06 7:21 PM (#569720 - in reply to #569717)
Subject: Re: Re: '56 Imperial Rear Pinion Seal C-73


Member

Posts: 10

56D500boy - 2018-09-06 6:36 PM



Rock Auto:

Width (in) 0.5
Shaft (in) 1.875
Bore (in) 3.105
Outer Diameter (in) 3.11


I'll order from Rock and thank you very much
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ybshore
Posted 2018-09-06 7:24 PM (#569722 - in reply to #569717)
Subject: Re: Re: '56 Imperial Rear Pinion Seal C-73


Member

Posts: 10

56D500boy - 2018-09-06 6:36 PM



Rock Auto:

Width (in) 0.5
Shaft (in) 1.875
Bore (in) 3.105
Outer Diameter (in) 3.11



They both claim to replace 663602. Same? My outer diameter is 3.5
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56D500boy
Posted 2018-09-06 10:49 PM (#569732 - in reply to #569722)
Subject: Re: Re: '56 Imperial Rear Pinion Seal C-73



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20001000500100100
Location: Lower Mainland BC
ybshore - 2018-09-06 7:24 PM
They both claim to replace 663602. Same? My outer diameter is 3.5


THIS IS WHY ONLY ONE POST ONE TOPIC IS THE WAY TO GO.

663 602 has NOTHING!!!!!!!! to do with a C73.

At best it is a 1404 504. Google 1404504 (no space) and see what *you* come up with.

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ybshore
Posted 2018-09-07 6:46 AM (#569744 - in reply to #569732)
Subject: Re: Re: '56 Imperial Rear Pinion Seal C-73


Member

Posts: 10

56D500boy - 2018-09-06 10:49 PM

ybshore - 2018-09-06 7:24 PM
They both claim to replace 663602. Same? My outer diameter is 3.5


THIS IS WHY ONLY ONE POST ONE TOPIC IS THE WAY TO GO.

663 602 has NOTHING!!!!!!!! to do with a C73.

At best it is a 1404 504. Google 1404504 (no space) and see what *you* come up with.




Man! This is one of the hardest parts I've ever chased!!!
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ybshore
Posted 2018-09-07 6:53 AM (#569745 - in reply to #569732)
Subject: Re: Re: '56 Imperial Rear Pinion Seal C-73


Member

Posts: 10

56D500boy - 2018-09-06 10:49 PM

ybshore - 2018-09-06 7:24 PM
They both claim to replace 663602. Same? My outer diameter is 3.5


THIS IS WHY ONLY ONE POST ONE TOPIC IS THE WAY TO GO.

663 602 has NOTHING!!!!!!!! to do with a C73.

At best it is a 1404 504. Google 1404504 (no space) and see what *you* come up with.




I see on a Fireflite youi recommended Bernbaum.

https://www.oldmoparts.com/parts-rear-axle.aspx

Is this the same as my '56 Imperial?
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ybshore
Posted 2018-09-07 6:56 AM (#569746 - in reply to #569745)
Subject: Re: Re: '56 Imperial Rear Pinion Seal C-73


Member

Posts: 10

ybshore - 2018-09-07 6:53 AM

56D500boy - 2018-09-06 10:49 PM

ybshore - 2018-09-06 7:24 PM
They both claim to replace 663602. Same? My outer diameter is 3.5


THIS IS WHY ONLY ONE POST ONE TOPIC IS THE WAY TO GO.

663 602 has NOTHING!!!!!!!! to do with a C73.

At best it is a 1404 504. Google 1404504 (no space) and see what *you* come up with.







I see on a Fireflite youi recommended Bernbaum.

https://www.oldmoparts.com/parts-rear-axle.aspx

Is this the same as my '56 Imperial?




Mopar Part Number Search
Enter the part number or keyword description, and press the Search button. A partial part number can be entered but requires a minimum of 5 digits.

Part Number Description


1404504


Part Search Abbreviations List
Search Result For "1404504"
Part # Application Description
1404504 52-56 Chrys Des 8 Cyl seal pinion oil
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56D500boy
Posted 2018-09-07 12:59 PM (#569759 - in reply to #569680)
Subject: Re: '56 Imperial Rear Pinion Seal C-73



Expert

Posts: 3703
20001000500100100
Location: Lower Mainland BC
ybshore - 2018-09-06 7:22 AM
Older (pre '57) 8-3/4 diffs will not fit into the true 8-3/4 ('57 and later) axle housing. The axle housing has a different bolt pattern for the carrier, the axles have different splines, and the axle bearings are all different. I've been looking for the pinion seal for my '56 Imperial and can't find a source. It's 2 5/8 ID x 3 1/2 OD. Can anyone send me to a lead? TY.


While not convinced that you really need a 2.625" x 3.50" seal, I found an SKF 26177 with those dimensions.

You're welcome





(SKF_26177_SealDetails.jpg)



Attachments
----------------
Attachments SKF_26177_SealDetails.jpg (100KB - 14 downloads)
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57chizler
Posted 2018-09-07 5:19 PM (#569772 - in reply to #569759)
Subject: Re: '56 Imperial Rear Pinion Seal C-73



Expert

Posts: 3036
2000100025
Location: NorCal
56D500boy - 2018-09-07 9:59 AM
While not convinced that you really need a 2.625" x 3.50" seal, I found an SKF 26177 with those dimensions.

You're welcome



Same number I posted in my original reply but those dimensions are suspicious, not a typical pinion seal configuration.
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