1956 Imperial Power Steering Gear Output Shaft Seal
jboymechanic
Posted 2022-04-10 11:57 PM (#620835)
Subject: 1956 Imperial Power Steering Gear Output Shaft Seal



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Just thought I'd share my experience so hopefully you don't have to relive my struggle. At the end of the season last year, my car developed a pretty bad leak through the seal of the power steering gear output shaft. All the information that I could find pointed me toward seal 12350 from SKF. The seal was indeed the right inner and outer diameter, but it was too tall. Once installed, I could not re-install the retainer snap ring.

After looking through SKF's catalog, the correct part number was determined to be 12337. This seal is the same design but the correct height to match what came out of the car so the snap ring will fit. The seal is FKM instead of NBR, but both are compatible with AFT.
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56D500boy
Posted 2022-04-11 2:31 AM (#620838 - in reply to #620835)
Subject: SKF 12350 Details vs SKF 12337 Detailsl



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As suggested, the 12337 is thinner at 0.25" compared to the thicker 12350 at 0.313" (probably 0.3125"). The other dimensions are the same. Lip materials are different, as stated.

Good find. Thanks.





Edited by 56D500boy 2022-04-11 2:34 AM




(SKF12350Details.jpg)



(SKF12337Details.jpg)



Attachments
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Attachments SKF12350Details.jpg (49KB - 140 downloads)
Attachments SKF12337Details.jpg (47KB - 135 downloads)
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macedon
Posted 2022-09-30 6:10 PM (#624616 - in reply to #620835)
Subject: Re: 1956 Imperial Power Steering Gear Output Shaft Seal



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Unfortunately I've got a leak at the output shaft of my 57 De Soto Fireflite. Just happened after driving it recently. It had sat for a while. Pretty bad leak. How can I find the correct seal for this application? Thanks
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jboymechanic
Posted 2022-10-04 2:06 PM (#624685 - in reply to #620835)
Subject: Re: 1956 Imperial Power Steering Gear Output Shaft Seal



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Location: Muskego, WI
Honestly, your best bet is to remove the leaking seal and get the part number and dimensions from it before you try to order a new part.
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Powerflite
Posted 2022-10-04 3:04 PM (#624686 - in reply to #624616)
Subject: Re: 1956 Imperial Power Steering Gear Output Shaft Seal



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I replaced the bottom seal on my '58 Fireflite before I ended up getting it rebuilt. I was able to get the seal from Rockauto. '58 is different from '57 though, but you could give them a try.
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