2000 black c5

Hello all,

newbe here trying first post. If I'm doing anything wrong here please feel free to let me know!

Anyway have a 2000 c5 with manual trans, with 29,000. miles. Love the thing!

after 3 day trip parked in garage and noticed a silver dollar size oil spot on garage floor from back end drivers side under transmission.

After a bunch of online research it appears that it may be a output drive shaft seal? Apparently it's a common problem and GM even issued a service bulletin about it.

Anybody know anything? Cause, cost to repair, what I should do now, etc.

Any thoughts, experience with it, and or advice would be greatly appreciated.

Thanks a million,
Kevin

Carl Timonen

First thing I'd do is to determine what type of fluid it is. Gear lube, trans fluid or maybe even condensate coming from the exhaust flange.

2000 black c5

Hey Carl,
Thanks for getting back to me,
Positive not condensate. Seen that often. No color in it it and heavy viscosity so pretty sure not trans fluid. Heavy weight hypoid oil with slightly dirty brown color is what it seems like. Manual trans but surprised it may contain Dextron 111 auto trans fluid?

Only owned it for a about six months so a little clueless with corvettes.

Thanks.

Carl Timonen

If it stinks, it's gear lube. Best thing to do is get underneath and do a visual to determine where it's coming from.

2000 black c5

looks like coming from small housing bolted to trans/differential from which driver side axel comes out of to wheel.

2000 black c5

Didn't smell it but heavy weight oil.

beary58

Pretty sure it is your seal. It's not to bad of a job if your are mechanically inclined. You are basically just pulling the shaft out of the trans unit, replace the seal, and then putting the shaft back in. I think it cost me about $800 eight years ago. This will be a good time to verify the rubber boots are still good.

Beary

Bill Curlee

YES !!!! Trans takes DEXTRON.

Here is something that you should enjoy:

- C5 Differential Seal replacement: http://forums.corvetteforum.com/c5-g...on-photos.html


- C5, ragtopws6 , Upgrading your C5 rear with C6 Z06 guts, : http://forums.corvetteforum.com/c5-g...-z06-guts.html
-

- C5, Its_Go_Time, Output Shaft Install - Left and Right: http://forums.corvetteforum.com/c5-t...post1573407966


- - C5 BEST DRIVE TRAIN POST GOING: https://www.corvetteforum.com/forums...post1591614975 https://www.corvetteforum.com/forums...post1591614975

2000 black c5

Thanks a million really appreciate the help!

2000 black c5

Thank you! Appreciate the help. Don't know about enjoying (Bigger job than i had hoped) but such is life.
Thanks again!

2000 black c5

ps
Anybody know of any repair shops in San Francisco/ Bay Area that you could recommend that can do output shaft seal diagnosis/repair? Looks to be beyond my ability.
I should probably be posting this request somewhere else on this site. I'm brand new at this and pretty clueless. Will learn and try not to waste anyones time.

Thanks Again!!