How can you tell if the transmission case is bad?

[RedFenix_68]

Just as the title says, how can you tell if the transmission case, other than appearance is going bad?

[bad idea]

Now you have sparked my interest. I didn't realize a transmission case was a wear item. I assumed it was good as long as it wasn't cracked or had a huge hole in the side. Even then, it is aluminum and can be welded. I'm hanging out to see the answer to this question.

[2002ssslp]

If it doesn't leak then it should be good to go. It's not a wear item.

[RedFenix_68]

O. Sounds good. Someone on here I cant remember, told me that the case integrity could cause problems. I was left confused and doubting myself....felt like someone told me that Iwas all out of blinker fluid if you know what I mean.

[pajeff02]

As a generality, transmission cases can suffer from casting porosity. For our older cars that came equipped with Muncies, there is a section of the service manual that deals with this issue. The fix is to disassemble the transmission, clean the affected area and then cover it with a coat of epoxy. I have not heard of this issue being raised on here previously for T-56's.

[RedFenix_68]

I finally pulled the transmission case all the way off last night. All the gears look great, and the case looks ok. There is a spot inside of it that concerns me a little. I will put up a pic to see what anyone else thinks. I am not to worried about it, but id rather have someone elses opinion.