Transmission tail shaft leak

**Dr.Crash** · 07-07-2009, 09:55 AM

So after the motor swap i noticed that i have had a pretty constant leak from the trans tale shaft. the other day i got under the car and it looked like the drive shaft was out of the trans a little more than normal. is this possible? everything is mounted up in the same spot as before. Or could it just be that the seal is bad? i dont think i over filled it, but i will check again this weekend. I havent had much time to tinker with it but any help would be great. Thanks

**shady milkman** · 07-07-2009, 09:58 AM

m6 or a4? none the less..the torque arms mount on the tail shaft creating a lot of stress on it from any car that isnt stock..i woulldnt doubt a stress fracture on the tail shaft..especially with a 408 stroker

**Dr.Crash** · 07-07-2009, 10:08 AM

Originally Posted by shady milkman

m6 or a4? none the less..the torque arms mount on the tail shaft creating a lot of stress on it from any car that isnt stock..i woulldnt doubt a stress fracture on the tail shaft..especially with a 408 stroker

M6 with a tubular torque arm. let me guess i need a new tranny

hey wait my car is stock. check my profile

**Wesman** · 07-07-2009, 10:11 AM

Originally Posted by Dr.Crash

M6 with a tubular torque arm. let me guess i need a new tranny

hey wait my car is stock. check my profile

Its probably just the tailshaft seal. I had to replace mine after I rebuild the trans. Go to Napa and pick one up, its easy to change. Just pry the old one out and insert the new one.

**Dr.Crash** · 07-07-2009, 10:14 AM

Originally Posted by Wesman

Its probably just the tailshaft seal. I had to replace mine after I rebuild the trans. Go to Napa and pick one up, its easy to change. Just pry the old one out and insert the new one.

Ya im am def gunna try this first. Thanks

**Dr.Crash** · 07-07-2009, 10:21 AM

oh ya and my torque arm is attached to the cross member not the tranny

**pajeff02** · 07-07-2009, 05:20 PM

Replaced ours back in March -- actually had some fun trying to install the new seal. I do not have a seal driver and it kept popping back out as I tapped around the perimeter with a plastic hammer.

**cammed goat** · 07-12-2009, 02:01 PM

Had mine replaced under warranty. Didn't know I had a leak til I took mine to the dealer for a diff chatter. Had a pinion seal and tailshaft leak.

**Dr.Crash** · 07-12-2009, 02:48 PM

well i have been to every auto part store in the area and none of them have it. looks like im gunna have to go to the dealer

**cammed goat** · 07-12-2009, 02:57 PM

Have you tried eBay?

**Dr.Crash** · 07-12-2009, 03:27 PM

i just dont understand how its so hard to find

**Firebirdjones** · 07-12-2009, 03:27 PM

Originally Posted by Dr.Crash

well i have been to every auto part store in the area and none of them have it. looks like im gunna have to go to the dealer

Thats sad when the local chain stores don't carry a common seal

Have a close look at the tailshaft bushing while you're in there too. If it's worn and letting the yoke move around more than it should, the seal can't do it's job well. Sometimes this even causes vibrations that people chase around with wheels, tires and even the driveshaft itself,,,lol.
Alot of people have replaced the seal for a leak only to find it comes back a couple months down the road. Because the bushing is worn beyond spec.

Just something to keep in mind.

**Dr.Crash** · 07-12-2009, 03:31 PM

Thank you sir. i will def check that out. im new to this whole transmission thing. kinda one of those things that scare me

**c5z28** · 07-12-2009, 04:22 PM

my car is peachy as usual-thought I would let you know.

**pajeff02** · 07-12-2009, 04:37 PM

Originally Posted by Dr.Crash

i just dont understand how its so hard to find

Same here -- none of the ChinaParts stores had them in stock. I just went to our local transmission shop and he gave me one.

**Dr.Crash** · 07-12-2009, 07:41 PM

Originally Posted by c5z28

my car is peachy as usual-thought I would let you know.

well when you start making real power maybe then your opinion will matter.

**Dr.Crash** · 07-12-2009, 07:44 PM

Originally Posted by pajeff02

Same here -- none of the ChinaParts stores had them in stock. I just went to our local transmission shop and he gave me one.

Napa says they have them on the phone, but then when i go down there they say, oh well we have something like it but we have to order it, and its not the same???????

To the dealer i go

**shady milkman** · 07-13-2009, 05:08 AM

Originally Posted by Dr.Crash

Thank you sir. i will def check that out. im new to this whole transmission thing. kinda one of those things that scare me

x2 good sir..i'll tear into a engine and be fine..but a transmission...get me the hell out of there !!! and call a pro..that is my philosophy on transmissions

**JoshieDoom** · 07-13-2009, 05:14 AM

Originally Posted by Firebirdjones

Thats sad when the local chain stores don't carry a common seal

Have a close look at the tailshaft bushing while you're in there too. If it's worn and letting the yoke move around more than it should, the seal can't do it's job well. Sometimes this even causes vibrations that people chase around with wheels, tires and even the driveshaft itself,,,lol.
Alot of people have replaced the seal for a leak only to find it comes back a couple months down the road. Because the bushing is worn beyond spec.

Just something to keep in mind.

HELL YEAH!

One of my many transmission issues!

Great Great Point!