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Need help identifying - part broke off in oil pan.


justin_steube

Member
Joined
Jan 24, 2016
Messages
11
Vehicle Year
1988
Transmission
Automatic
What's up everyone - tranny was shifting a little rough and having trouble finding second so I figured I'd drop the pan and replace the tranny filter.

When I popped 'er open - I found the little gem in the photo sitting down at the bottom of the pan.

Any idea what it might be? The tranny had been out once before by a eh.... less than reputable shop so I'm hoping maybe they were just careless and left it there by accident (wishful thinking I guess).

Anyways - anyone know where this came from? I didn't see anything when the pan was off that looked like it could have broken off of. Is this the kiss of death for my lil ranger?
08d94d15a72c442f5323ca8e9564fb8a.jpg



Sent from my iPhone using Tapatalk
 
That is a pretty bad picture. It kinda looks like the camera auto-focused on the beer can. Can you get some more angles and better clarity?

What is it made of? Is it metal or rubber?
 
It's metal. Copper colored on one side silver on the opposite side. Thin metal.


Sent from my iPhone using Tapatalk
 
Its a bushing. The bushings that go between rotating and stationary components, which are meant to be wear items, are copper cored with a ferrous exterior layer, like an inside-out penny, or an engine bearing.

There is a good chance this is the cause of your issues, and that the trans needs to come apart, if not just get replaced.
 
Most thrust bearings/washers, as shown, are ferrous internally, coated with brass/bronze, or are fully brass/bronze or maybe copper. I do not think they'll have an iron 'face' touching a moving part, but may have an uncoated face touching the stationary part that holds the thrust washer. You can see a partial 'tab' in the second picture at the free end of the shard. The tab fits into a slot or hole to keep the washer stationary. Either this one was defective, or installed incorrectly, and your transmission now has a LOT of end play. The holes that direct fluid via drilled passages to the clutch packs may get out of alignment, and the packs may not apply properly any more.
It may be possible to keep the thing from self destructing, but you'd have to take it apart, find the spot the thrust bearing/washer should reside, and replace with a new one. That can work if the clutches and steels are still good, and the rest of the transmission is not damaged.
In a lot of newer transmissions, thrust bearings/washers are replaced by 'Torrington' bearings, very flat bearings that look like a thick washer. They have less rubbing friction than a thrust washer.
tom
 

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