Extension housing bushing - TCCoA Forums
 
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post #1 of 8 (permalink) Old 12-09-2016, 09:05 PM Thread Starter
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Extension housing bushing

Hey, I'm on the hunt for an extension housing bushing and seal. My differential bit the dust last night and the resulting vibration may have caused damage to the bushing. It seems to have some play in it. From looking around, I see national part 5202 but it says AOD-E. Now obviously that's not what i need for my 97 4r70w. But the site also says it fits a 97 thunderbird, which never came with an AOD-E, and 1998 up mustangs, which also never came with AOD-E's. Can anyone help me out here to find this bushing and seal, hopefully a parts store brand so I can find it quickly. Thanks.

I love my V8, but I'd love it more if all 8 cylinders worked. (they do now)

My T-bird is like George Jetson's wife, you try to give her a little money, she takes the whole wallet.
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post #2 of 8 (permalink) Old 12-10-2016, 07:42 AM
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You can get both the seal and the bushing at your local O'Reilly Auto Parts..

4R70w Bushing-->>Pioneer #755180
4R70w Seal------>>National #4764





Rayo..

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post #3 of 8 (permalink) Old 12-10-2016, 09:43 AM
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You could also go with a new tailshaft housing and not mess with changing out the bushing.

Joe

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post #4 of 8 (permalink) Old 12-10-2016, 02:31 PM
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Thanks for the link, Joe!


Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
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post #5 of 8 (permalink) Old 12-11-2016, 10:30 PM
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+1, good find. A kit, ready to go. That's great.

For what it's worth, mine always had a little bit of play in it at the yoke. I've asked those in the know about it, RobertP being one of them, and have been told that it is fine. It never really gave me any issues.

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post #6 of 8 (permalink) Old 12-11-2016, 11:38 PM Thread Starter
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For anyone wondering, I called Aamco and they said to bring in the extension housing they will press the right one in. The person I spoke with said it would help to have the yoke as well. So tomorrow I will drop them off and see what happens. I'll update whether it goes well or not.

I love my V8, but I'd love it more if all 8 cylinders worked. (they do now)

My T-bird is like George Jetson's wife, you try to give her a little money, she takes the whole wallet.
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post #7 of 8 (permalink) Old 12-12-2016, 11:04 AM
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For the 4R you need the metric bushing, 1.607" vs the AOD/E 1.5" bushing.

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post #8 of 8 (permalink) Old 12-13-2016, 11:03 AM Thread Starter
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Thanks Rayo, the National seal number was exactly right, I could not verify the bushing number because I don't have any O'Rileys near me, but I'm sure that's correct too.
Thanks SilverFox, as per Aamco, you are 100% correct with the dimensions for both transmissions.
Just to get the info out there, the National 5202 number is for the AOD-E and is the smaller diameter that SilverFox said. This WILL NOT FIT a 4r70w.
I did take the entire housing to Aamco and they did in fact press a new bushing in (spec 1.607) along with a new seal and they even gave me an extension housing gasket. Total cost: $0.00 and a few hours of time.
If anyone is planning to do this in the future, do yourself a favor and bring the slip yoke with the housing. If you do, the pros can look at the parts to make sure the yoke isn't warn out beyond help, and that the right bushing and seal are going in.
I am by no means a transmission professional so if there is any misinformation here, please feel free to correct it.

I love my V8, but I'd love it more if all 8 cylinders worked. (they do now)

My T-bird is like George Jetson's wife, you try to give her a little money, she takes the whole wallet.
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