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64 Rambler Classic 660 torque Tube bushing |
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westree
AMC Fan Joined: Jun/02/2018 Location: Winnipeg Canada Status: Offline Points: 19 |
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Posted: Jul/10/2019 at 3:21pm |
Hi everyone,
I have had a leaking trans where the TT meets the transmission housing. Suspected it was the rear seal and have the TT out to replace but found the thick rubber bushing attached to the flange is disintegrated. Any idea where to fins a replacement if I can get it off of the flange plate. It seems like it is part of the plate. Any and all suggestions are great. Thanks, Wes
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gtoman_us
Moderator Group Joined: Jul/10/2007 Location: E. Nebraska Status: Offline Points: 3869 |
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they are available thru Galvin's or Blasers. The official name is "trunnion" for the transmission to torque tube. A little pricy around $250.
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Moderator - Emeritus
Used to collect trophies, now I collect gas receipts and put on miles 1964 Rambler Ambassador Cross Country Wagon 1965 GTO 1931 Model A original survivor "Flat Roofs are Cool" |
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westree
AMC Fan Joined: Jun/02/2018 Location: Winnipeg Canada Status: Offline Points: 19 |
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Yikes! Thanks for the info. I'll begin my search.
Wes
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19676 |
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If you can find some high density rubber matting you can make one. Clean the old rubber out and RTV in place. Must be high density! If it's not hard enough it won't do much and will quickly wear out. The only thing I can think of at the moment is the pads used in horse barns that the horses walk on. They are about an inch thick. Probably need 1-1/2 to 2 inches for the trunnion pad. Found some on the Grainger site that should work. 70A durometer Buna-N (abrasion and oil resistant). Commercial grade 1"x12"x12" piece is $38.62, a high grade piece the same size is $69.01. I'd go with the high grade. You should be able to get four pieces out of a 12" square, so could double it for 2" thick. IIRC the cushion is no more than 6" square, but measure! You might need to get a 2' long piece...
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Frank Swygert
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vinny
Supporter of TheAMCForum Joined: Jan/05/2012 Location: Calgary Status: Offline Points: 2837 |
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I notice when I park mine down hill some differential oil comes out at the transmission to T/T joint. Probably it is not doing that rubber block any good. Once a year I check the differential oil level and put a little in to top it off. If I ever find the time to change out the 196 bell housing to that of the 232 for the engine that is in the car now then I'll look into that leak.
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westree
AMC Fan Joined: Jun/02/2018 Location: Winnipeg Canada Status: Offline Points: 19 |
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Thanks Farna.
For removing the old one it seems almost like it is part of the plate. Should I just be cutting It out from the plate and cleaning it up the best I can? Thanks, Wes
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19676 |
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Yes. It's vulcanized to the plate. It's tough, but a wood chisel (one you don't mind sharpening again, or maybe destroying.... a cheap set from Harbor Freight?) will work. Or just take a piece of 1" bar stock and sharpen the end. RTV the rubber in place. One note, I'm not sure a 70A durometer hardness is correct, that's just the hardest you can get. The durometer scale for rubber goes up to 90, but I have no reference to just how hard that is or what the cushion should be. I found this chart, which shows some comparative common items: A 50A or 60A would probably be better, as it looks like 70A is about like a tire tread... might be a bit hard. I notice I forgot to put in the Grainger link!
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Frank Swygert
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19676 |
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vinny, trans fluid/oil and differential oil will eventually soften and destroy the cushion in the TT. You have to take the TT off to change the seal in the rear axle of course. I'd put a trans seal in while it's off. The tubber is oil resistant, but time takes its toll on everything...
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Frank Swygert
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SensibleSpectaculars
AMC Nut Joined: Jul/25/2010 Location: New Jersey Status: Offline Points: 472 |
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How tough is it to change the trans seal back there? Does the tailshaft have to come off?
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vinny
Supporter of TheAMCForum Joined: Jan/05/2012 Location: Calgary Status: Offline Points: 2837 |
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From what I remember, with the differential away from it the seal is not hard to change. They make a special tool to pop the old one out.
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