Anyone have their 6-speed Getrag go bad?
Mine is making a racket.

Did you get it replaced?
How long did you drive on it?
Any and all responses are appreciated, I am just trying to see what I'm in for.


More Info:

2003 MCS. 6-speed manual. The car needed a clutch. Transmission was 100% in perfect shape. Parked the car at 93,163 miles. Drained all the MTL and let it drip for a while. Dropped the transmission. It hit the floor a little hard, but nothing major. Then replaced the throwout guide tube, and the transmission input shaft seal. Then the clutch. Reinstalled the transmission. Everything lined up perfectly. Then proceeded to refill the transmission via the fill plug with MTL. It took about 1.2 quarts before it started leaking out. The car was on front jack stands while the back was on the ground. About a 10 degree angle. Theoretically once the front end drops level again the transmission fluid level will be lower than it was due to the position of the fill plug.
Then reinstalled all parts and test drove. Everything sounded fine. No noises or gear noises.
I forgot to top off the transmission on a level surface, but it couldn't have been that low.
Then drove car 400 miles.
At the end of the 400 mile trip the gear noise was getting louder. Then during short drives its been getting louder and louder.
Based on the evidence and testing, it seems to be either the transmission itself, or the differential unit, which sits pretty high up in the transmission.
So was the tranny being a little low on fluid enough to grenade the differential?

.

 

Going to move you to the Stock Problems/Issues area.

What year?
How many miles?
When was the fluid changed last?

 

Just added the info to the original post

 

With long distance diagnosing, the more info provided the closer the darts can be thrown.

 

2003 MCS. 6-speed manual. The car needed a clutch. Transmission was 100% in perfect shape. Parked the car at 93,163 miles. Drained all the MTL and let it drip for a while. Dropped the transmission. It hit the floor a little hard, but nothing major. Then replaced the throwout guide tube, and the transmission input shaft seal. Then the clutch. Reinstalled the transmission. Everything lined up perfectly. Then proceeded to refill the transmission via the fill plug with MTL. It took about 1.2 quarts before it started leaking out. The car was on front jack stands while the back was on the ground. About a 10 degree angle. Theoretically once the front end drops level again the transmission fluid level will be lower than it was due to the position of the fill plug.
Then reinstalled all parts and test drove. Everything sounded fine. No noises or gear noises.
I forgot to top off the transmission on a level surface, but it couldn't have been that low.
Then drove car 400 miles.
At the end of the 400 mile trip the gear noise was getting louder. Then during short drives its been getting louder and louder.
Based on the evidence and testing, it seems to be either the transmission itself, or the differential unit, which sits pretty high up in the transmission.
So was the tranny being a little low on fluid enough to grenade the differential?

 

You should get some responses here. Both Way Motors and Detroit Tuned are vendors here that have their own repair shops.

 

Posted a video to youtube:


Showing noise from the outside of the car, and what you hear while driving

 

Seriously, have you view and listen (i.e. reviewing it does convey the problem) to the video you posted? Sound just fine to me.

Since driving 400 miles and hear the noise, did you top up the fluid? I suspect the most likely damage due to low fluid is the input shaft bearing, and may be the differential bearings too. By topping up the fluid I would expect the noise to reduce, despite of the damage has been done.

 

Looking at my photos the diff bearings are pretty low. So more likely the input shaft bearing.

 

I heard the noise on your youtube video ... my 2005 makes the EXACT same sound!
So far I've rotated the tires front to rear, no difference, replaced the drivers side front axle hub, no difference. The only other things left to do would be replace the passenger side hub and possibly the passenger side axle assembly that has the carrier bearing. I don't think it's anything inside the transmission because it makes the sound in all the higher gears with it coasting and even coasting with the engine shut off. The more I think about it, the more I think it could be the carrier bearing on the passenger side axle assembly.