What are the symptoms of a bad torque converter?

burdar said

How are your U-joints? If they aren't new, that could be your "clunk". The TF-2 shift kit really quickens the shifts. I didn't realize my U-joints were bad until I installed that kit. They made noise at almost every shift. You can address that when you go through the rear end.

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Never thought about that, they seemed ok when I put the driveshaft back in, but I don't even know how old they are, I just put them in because I knew I was replacing the rear soon. Also I think my 7 1/4 rear makes a clunk too, its probably that. Im just waiting for it to break essentially, will give me an excuse to get the 8 3/4 in sooner.