96 4dr LX A/T

In trying to diagnose the TCC problem I had the front wheels off the ground to get the car to run through the gears and see if the torque converter would lockup. I pushed it to about 65-70. I thought I heard the lockup, but then heard some nasty rumbling, so I stopped. If that's why my converter isn't locking up when there's load on the wheels, then it sounds like absolute CRAP!

I took the car out on the road and if I'm going around a long sweeping right hand exit ramp about 40 MPH, I get a rumbling sound from the powertrain. It stops when I starighten the car again. At first it sounded like a wheel bearing went out, but they check out fine.
Could this be my torque converter ripping itself apart?

Seeing as though I don't have the cash to do a 5 speed swap or get a rebuild auto tranny, would it be really worthless for me to just replace the converter with a rebuild one? Or should I just find a used converter and tranny?

Tranny shifts fine.

 

How are the c/v joints?

 

sounds kinda like my car... but my cv boot is done but if you had it up in the air then you prolly would've noticed axle grease every where it shouldnt be... lol