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Author
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Topic: Transmission Leak at driveshaft plug in
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White Notch
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Member # 13342
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posted
 
 
I just put my car back together today after doing a rear main seal job, meaning I took off the tranny, clutch, flywheel, driveshaft, bellhousing, exhaust, etc. But I just went and ran her and the only leak it has now seems to be coming from the back of the tranny at the input shaft for the driveshaft. Seems to be leaking out of that rubber grommet thing that goes over the end of the driveshaft where it plugs into the tranny. Anyone know whats causing this and how to make it stop leaking?
Posts: 21 | From: East Bay, CA | Registered: Dec 2013
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GTCONV86
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Member # 5385
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posted
Replace tranny tail shaft seal
Posts: 158 | Registered: Feb 2005
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Wht86drop
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Member # 12104
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posted
What he said. Make sure the slip yoke is in good condition meaning there is no grind marks
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Jalapeña Red 86 GT Vert
Yellow 72 Chevelle
Rio Red 97 Cobra
High-Output Generations CC
Posts: 1669 | From: East Palo Alto, Fiji Islands | Registered: Jun 2012
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90GT510
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Member # 9199
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posted
quote:
Originally posted by GTCONV86:
Replace tranny tail shaft seal
If this doesn't work it could be your crossmember not holding the trans straight.
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Stay Sydewayz
Posts: 1725 | From: East Bay/Dallas, TX | Registered: May 2009
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30Tunes
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Member # 8105
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posted
What would cause the crossmember to not hold the tranny straight?
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SUCCESS ONLY COMES BEFORE WORK IN THE DICTIONARY
1991 Calypso Green Notch
1993 Cobra Clone - SOLD
Posts: 829 | From: Bay Area | Registered: Dec 2007
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90GT510
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Member # 9199
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posted
quote:
Originally posted by 3-0-Tunes:
What would cause the crossmember to not hold the tranny straight?
If it's bad (bushings, bent etc)
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Stay Sydewayz
Posts: 1725 | From: East Bay/Dallas, TX | Registered: May 2009
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30Tunes
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Member # 8105
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posted
For some reason my exhaust touches the drivers side of the crossmember. Makes a tapping noise when its cold out sometimes too. I thought it was a rod knock the first time I heard it. Would a bad tranny mount cause this?
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SUCCESS ONLY COMES BEFORE WORK IN THE DICTIONARY
1991 Calypso Green Notch
1993 Cobra Clone - SOLD
Posts: 829 | From: Bay Area | Registered: Dec 2007
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Tom Renzo
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Member # 13165
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posted
Normally when it leaks from the tail shaft it is the output seal. But a worn out tail shaft bearing or yoke can be chewed up and also the seal as well. Make sure there is no up and down play in the yoke when installed in the tranny and check the yoke for excessive wear.Push the yoke up and down to check that for excessive play. And make sure there is no worn out spots in the yoke in the bearing or seal area. It can also leak from the plug in the back of the yoke. I have seen this happen many times. Guys will reseal the tail and install a new output bushing and have it leak again. So take a good look at where it is leaking from and check the plug at the end of the yoke. They can and in some cases do leak from there. Good luck.
[ 2014-05-01, 03:51 AM: Message edited by: Tom Renzo ]
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I spend money i don't have. Building cars i don't need. To impress people i don't know.
Posts: 557 | From: CT | Registered: Sep 2013
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