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| Getrag axle wobble (Page 1/2) |
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donuteater306
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OCT 05, 10:33 AM
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Saw a drip coming from the right axle seal, grabbed the axle and shook it up and down..discovered what I believe is excessive play. I’m assuming the output bearing is bad, but I don’t have a lot of experience with this transmission. Am I lookin at a rebuild, or is this normal for these? It’s not making any noise, yet.
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Raydar
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OCT 05, 11:43 AM
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A little bit of play is to be expected. (Nobody, to my knowledge, has ever specified *how much*, but a little...)
What you don't want to see, when you shake it up and down, is up and down movement of the axle on the other side. If that's the case, then your bearings are worn.
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donuteater306
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OCT 05, 12:41 PM
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Good to know, thanks for the tip. I’ll have to crawl back under there and see what happens. Has anyone used those stabilizing bearings from the Fiero store?
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Larryinkc
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OCT 05, 04:59 PM
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donuteater306
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OCT 06, 02:15 PM
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Thank you, I’ve never seen those...but I also didn’t know that some wobble is normal. I’m really curious about those Fiero Store support bearings. Looks like a simple (But expensive) solution.
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jonnyp
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OCT 06, 02:40 PM
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When I purchased my 88 GT 5 speed two years ago, the driver's side seal leaked while driving. The previous owner said he had the seal replaced twice, but it did not stop the leak.
See Rodney Dickman's article describing how to check for wear of the differential output bearings: http://my.execpc.com/~rodney1/getraginfo.htm
After I bought the car, I checked the differential play by rocking the CV tripod housing on the driver's side, and sure enough there was a decent amount of movement of the passenger side tripod housing. There was a bit of "hum" while driving in 2nd and 3rd gears, but not overly excessive.
Heeding Rodney's advice, I ended up dropping the cradle and sending the transmission in for a partial rebuild. Luckily, my guy was able to find a full bearing kit for the 282. When I went to pick it up, he said the output bearings fell apart as soon as he cracked open the case.
My car only has 47k miles, so think Rodney's assessment of the 282's weaknesses is on point.
JP
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Larryinkc
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OCT 06, 08:02 PM
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| quote | Originally posted by donuteater306:
Thank you, I’ve never seen those...but I also didn’t know that some wobble is normal. I’m really curious about those Fiero Store support bearings. Looks like a simple (But expensive) solution. |
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My thoughts are that the Fiero Store support bearings look like the needle bearing runs directly on the axle shaft surface which was was not intended to use as a bearing surface. The GM support bearing kits have a sleeve that goes over the axle shaft that is a bearing surface which should be better.
The GM bearings show up on ebay in the $30 to $50 range but take a bit of effort to make them work. Part numbers to search are 8643931 or K75125.
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donuteater306
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OCT 07, 09:32 PM
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Good catch Larry. I wonder if anyone has had issued with them.
Great info. Jonny, thanks you guys for your help. I really appreciate your experience.[This message has been edited by donuteater306 (edited 10-07-2020).]
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Larryinkc
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OCT 07, 10:59 PM
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My car is a Series III 3800 swap, I have several thousand miles on the GM axle stabilizers and no leaks.
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donuteater306
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OCT 09, 10:48 AM
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Silly question. Do I need one or two of those kits?
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