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Model15 twin grip pinion seal |
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232jav3sp
AMC Addicted Joined: Jan/09/2013 Location: Texas Status: Offline Points: 2451 |
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Posted: Aug/14/2015 at 1:51pm |
I need help finding the pinion seal for a model15 twin grip unit. The AMC part number is 3128171. I've gotten plenty of parts numbers, including: National, Napa, SKF, Felpro, Chrysler, et... But, they are all obsolete. Looking on National's website, I can find a pinion seal that they say is correct, however, the dimensions aren't correct.
These are the dimensions of the seal I need. Inside Diameter: 25.4 mm,1 in Outside Diameter: 71.55 mm,2.817 in Width: 29.36 mm,1.156 in The seal has what appears to be a 5/8" shoulder that sticks out past the housing, and is where the actual seal for the pinion shaft is located. The pinion yoke then has a shield that goes over that shoulder. |
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232jav3sp
AMC Addicted Joined: Jan/09/2013 Location: Texas Status: Offline Points: 2451 |
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Wow... fourteen views and no one knows of where to find this elusive seal? lol
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carnuck
AMC Addicted Joined: Mar/31/2010 Location: Seattle Status: Offline Points: 3942 |
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Who made the AMC seal? I can't find that number even on Milspec sites. 1" ID?
What's it out of? |
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Got an Eagle?
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232jav3sp
AMC Addicted Joined: Jan/09/2013 Location: Texas Status: Offline Points: 2451 |
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Last week, I emailed Kennedy American and I got a reply yesterday. I had given them the part number on the seal, and they gave me the "updated" AMC part number, told me that they have several still in stock, and that they are a whopping $65!!! Will just have to wait a little bit until I get paid. As of right now, it doesn't leak, and the car isn't on the road. But, knowing that I can get it is a big relief.
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19611 |
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The "big nut" driveshaft Americans used that stepped seal, but I didn't think any others did. Or is that what you're working on? I'm not sure if the big cars with torque tube used a stepped seal or not, don't think the 63-64 Classic with 196 did. As you discovered, no one makes that stepped seal any more, since it hasn't been used since 1963 in the American. That's why the steep price.
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Frank Swygert
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232jav3sp
AMC Addicted Joined: Jan/09/2013 Location: Texas Status: Offline Points: 2451 |
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This is a twin grip rear I got from Typhooner. I had to do some alterations to the axle tubes for it to be the proper width for my Javelin. The rear is in GREAT condition and I don't want an old seal to fail and ruin it. Thankfully, that is the only thing that differs between it and all other AMC15 units.
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19611 |
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It's possible to make an adapter to use a different seal. The shield on the driveshaft will have to go though. You need a piece of steel tubing sized to press in where the original seal goes, and extend out to place a standard flat seal out where the front of the original seal is. I said possible, not easy! Getting a piece of tubing sized (may have to turn down OD a bit) to fit the original mount area is easy enough, sizing the ID to fit another seal is a bit tougher.
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Frank Swygert
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232jav3sp
AMC Addicted Joined: Jan/09/2013 Location: Texas Status: Offline Points: 2451 |
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I've given a little bit of thought to that. Making a pipe to fit won't be hard for me. After all, I do have a hydraulic pipe bender, with all of the expanders and reamers. The hardest part may actually be finding a seal that works for the pinion and the pipe. If once can't be found I'd have to step the pipe size down for a seal to fit. But, unless it's tried, I'll never know.
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typhooner
AMC Addicted Joined: Jun/28/2011 Location: Minnesota Status: Offline Points: 1184 |
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Can you post the seal number? I might know of a place that can get you one. If you can give me both the old and the new #.
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1969 Hurst SC/Rambler A Scheme
1969 Rebel Raider Electric Green 1962 IH/AMC SC/out |
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232jav3sp
AMC Addicted Joined: Jan/09/2013 Location: Texas Status: Offline Points: 2451 |
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Old number, 3128171. New, 3203580.
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