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#1
05-03-2021, 09:37 PM
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1964-1965 GTO pinion seal details needed
So factory part number is 9773216. I am getting ready to help replace the pinion seal on both a 64 and 65 GTO. The owner of the 65 says a shop tried to replace the seal twice and twice they had the wrong seal. Not sure where the shop sourced the seal. To make sure we get the correct seal, does someone have the inner and outer diameter specification on the seal? The last one I purchased was for my 70 GTO from an industrial supply source.
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1970 GTO 400 Atoll Blue, PS, PDB, A/C Was M20 4 speed, now has Keisler RS600 5 speed. |
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#2
05-03-2021, 09:58 PM
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SKF says that their SKF 16500 seal is a match for 9773216. Here are the specs: https://www.rockauto.com/en/moreinfo...842786&jsn=873
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My Pontiac is a '57 GMC with its original 347" Pontiac V8 and dual-range Hydra-Matic. |
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#3
05-03-2021, 10:02 PM
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I would measure your part and fit the seal to that. If the standard ones aren't fitting, perhaps it was machined at some point or maybe it's a different type of axle than you ordered the part for or ?
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#4
05-03-2021, 10:05 PM
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... and here is the page from the 1966 MPC stating that seal # 9773216 is 1 5/8" ID and 2 21/32" OD.
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My Pontiac is a '57 GMC with its original 347" Pontiac V8 and dual-range Hydra-Matic. |
| The Following User Says Thank You to Bill Hanlon For This Useful Post: | ||
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#5
05-03-2021, 10:10 PM
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Bill, thank you. bdk1976, I will double check when I have access.
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1970 GTO 400 Atoll Blue, PS, PDB, A/C Was M20 4 speed, now has Keisler RS600 5 speed. |
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#6
05-04-2021, 12:32 AM
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Note that the MPC calls out your 9773216 seal AND another, different size seal 9784286 also used on some 64-65 Tempests (and GTOs) as well as full size 66 Pontiacs. That crosses to SKF 19273. Specs here: https://www.rockauto.com/en/moreinfo...835254&jsn=265
Maybe this seal is needed????
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My Pontiac is a '57 GMC with its original 347" Pontiac V8 and dual-range Hydra-Matic. |
| The Following User Says Thank You to Bill Hanlon For This Useful Post: | ||
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#7
05-04-2021, 07:04 AM
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They're cheap enough, order both to have on hand. One of the two has got to fit unless something else is going on as mentioned above,
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"I know just enough to keep me here, but not enough to get me out" |
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#8
05-04-2021, 11:26 AM
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This thread may be of help, particularly the Youtube link in post # 10
https://forums.maxperformanceinc.com...d.php?t=849610
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 66 GTO, 495, M22, Strange S-60 w/4.10 Sold new at Ace Wilson's Royal Pontiac http://www.youtube.com/watch?v=cUHC-Z8xhtg |
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#9
05-04-2021, 02:30 PM
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This is used for the 1964-65 Buick style 8.2" rear end:
https://www.rockauto.com/en/moreinfo...350492&jsn=411 And this is used for 1964-72 Pontiac style 8.2" and 1966-70 fullsize rear end: https://www.rockauto.com/en/moreinfo...350492&jsn=409 |
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#10
05-04-2021, 02:36 PM
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Just went thu this myself. there are two different sized pinion yokes for 64-65. I ordered the SKF 16500 for my 65 rear end (1-5/8" bore) , which has the following specs:
Width (IN) 0.4 Shaft (IN) 1.645 Bore (IN) 2.656 Outer Diameter (IN) 2.66 Boretite Y Alternate/OEM Part Number(s): 1199566, 1231562, 1362360, 1362857, 1387449, 9773216, 9774408, 9774409. The other size pinion yoke seal i have seen listed for 64-72 GTOs is a SKF 19273 (1-7/8" bore) Width (IN) 0.5 Shaft (IN) 1.938 Bore (IN) 2.762 Outer Diameter (IN) 2.766 Boretite Y Alternate/OEM Part Number(s): 1236323, 1236324, 1236325, 1242066, 1242067, 1242068, 1243465, 1243466, 1243468, 1496123, 26033578, 3633518, 396470, 404294, 404795, 9784286, 9784508, 9787384, 9793675, 9793685
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