Help, Tranny Problems

[etsa]

Hi All:

Did the search but didn't find a problem similar to mine. Today while driving, I got a case of major whiplash twice when my car jerked violently from fourth to third gear while going 50mph. It got stuck in third and I drove for a little bit and then I slowed down and then put it into neutral and then put it back into gear and it ran fine until I got to my destination.

Now when I am accelerating or passing, it jerks violently into third gear from fourth and if I am lucky, it will shift to fourth. Every once in a while, I hear a whining sound like the old Muncies M22. Sounded cool but I know it means trouble.

Anyone has any idea what I am up against? A local shop quoted $2,700.00 to rebuild. I feel it is high.

Any advice would be greatly appreciated. Thanks in advance.

Aloha,
Eric