Official Tremec 3650 Issues Thread

Mustang225 · Nov 24, 2004

asa96fmc said:
Do you know how your dealer determined the build date? I recently had the TSB peformed but reverse gear no longer worked after it was done. Consequently, the dealership gave me a new transmission. I asked them to confirm it has the revised parts, but apparently they could not determine the build date.

Any help would be most appreciated, as I am about 600 miles away from being out of warranty, and I want to guarantee this thing is corrected. The dealership service manager was nice about it and assured me it would most likely have the updated parts, but I want definitive proof. Thanks!

If you check back on these posts a number of pages the updated tranny starts with 3R instead of 2R.

asa96fmc · Nov 24, 2004

Mustang225 said:
If you check back on these posts a number of pages the updated tranny starts with 3R instead of 2R.

Thanks a bunch! I'll check to also see where the location of '3R' is on the transmission as well. Of course, if you know and want to tell, I won't mind.

67HotRod · Nov 24, 2004

Does anyone know exactly what the "special tool" is that is needed? I'd like to give the guys a heads up before I take mine in so they don't have to jimmy rig something to get it to go back together. I wonder if it has something to do with 5th gear as there have been some problems with it after the fix. Thanks

ebbie53 · Nov 25, 2004

Well 30 degrees this morning and the car sat out all night. It shifted great, same as when it's warm. The 3R part number is the one they put in my car. It must have the updated parts. All the clunking is gone too. I live in Kentucky

drock01 · Nov 25, 2004

don't the cobra's and bullit models have 6-spd tranny's? Do these have issues as well???

asa96fmc · Nov 25, 2004

ebbie53 said:
Well 30 degrees this morning and the car sat out all night. It shifted great, same as when it's warm. The 3R part number is the one they put in my car. It must have the updated parts. All the clunking is gone too. I live in Kentucky

How many miles on your transmission?

Mustang5L5 · Nov 25, 2004

drock01 said:
don't the cobra's and bullit models have 6-spd tranny's? Do these have issues as well???

03+ Cobras get the T-56, which a totally different design that's been around for at least 10 years in other cars. They have had time to work out the bugs.

The Bullitt has a 5-spd and was the first American car to recieve the T-3650. Ford Falcons got the same trans down in Australia. I wonder how they are doing??

Mustang225 · Nov 25, 2004

asa96fmc said:
Thanks a bunch! I'll check to also see where the location of '3R' is on the transmission as well. Of course, if you know and want to tell, I won't mind.

Re-read my post, I did tell, starts with....

drock01 · Nov 26, 2004

ebbie53 said:
Well 30 degrees this morning and the car sat out all night. It shifted great, same as when it's warm. The 3R part number is the one they put in my car. It must have the updated parts. All the clunking is gone too. I live in Kentucky

Keep us posted with the colder weather on the way. I'm curious to see how your tranny works with temps around 20 degrees....

brianmef · Nov 26, 2004

drock01 said:
Keep us posted with the colder weather on the way. I'm curious to see how your tranny works with temps around 20 degrees....

Mine is shifting GREAT since the fix. It has been about 30 at night and before if it got below 50, it would shift like crap.

rustang04 · Nov 27, 2004

they gave me a new transmission

sacstoy02gt · Nov 27, 2004

rustang04 said:
they gave me a new transmission

Just curious, what was the part nubmer of the transmission they gave you?

Still trying to find out if they gave me the wrong one...

rustang04 · Nov 27, 2004

oh i don't know but i could probably find out

sacstoy02gt · Nov 27, 2004

rustang04 said:
oh i don't know but i could probably find out

Should be on your invoice. It will start with a 2R3Z or 3R3Z.
Hope you find it, I'd sure appreciate it!

Twisted · Dec 1, 2004

I FIXED IT MYSELF!!!!

Listen. I did this to mine after the partially successful rebuild last spring and the problem went away. Seeing that is winter here in MI, mine was acting up again (yes, after the rebuild). Brought it to a new dealer and they gave me the NTF, "it's normal" line.

So I took it home, got 4 jack stands, and put it away for the winter. Problem solved. No more grinding for me as I'm driving my buttery smooth 182,000 mile winter beater Altima with a 5 speed.

asa96fmc · Dec 1, 2004

Mustang225 said:
Re-read my post, I did tell, starts with....

Sorry, my question might not have been phrased well. What I wanted to know was where the number would be stamped on the transmission, if indeed it is there. If it's not, perhaps you would know where to find the build date stamped?

Thanks!

94Gtstock-newclutch · Dec 1, 2004

i have a 2004 gt. when it is cool i get the 1-2 grind and the 2-3 grind is even worse. if i double clutch, there is no problem. how can i tell which tranny the car came with 2R3Z or 3R3Z?

thanks

Terry

sacstoy02gt · Dec 1, 2004

94Gtstock-newclutch said:
i have a 2004 gt. when it is cool i get the 1-2 grind and the 2-3 grind is even worse. if i double clutch, there is no problem. how can i tell which tranny the car came with 2R3Z or 3R3Z?

thanks

Terry

Should be near the rear of the tranny on the passenger side; a little metal tag.

fr96ss · Dec 2, 2004

3650 fluid

Here is what i dont get... Tremic told me to use dextron III or mobil1 Synthetic atf at a 3.2qt level. yet all there emails and contacts with people say do not use synthetic fluid. personally i think they either have stock in Mobil 1 or they dont know what the hell they are talking about. How could one brand of synthetic be ok but every other type of synthetic not be recommended. Something is seriously wrong with the tremic guys. You know what. I think the dont know how to solve our problems. My 1988 sentra with 226,000 miles shifted better than this thing and never ever grinded. Im considering trading the dam vert in for either an auto or going back to ***

ebbie53 · Dec 2, 2004

Weel I've got 700 miles on the new tranny and all is well. The thing shifts the same even at the 25 degrees we had this morning. The part number dose start with a 3R3Z.

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