Causing my Rio to tach really high, loose power and shake really bad, on accel?

What is your question?

It will tach really high when you apply the accelerator just a small amount. I had the dealer, and several repair shops say it was the calipers locking up. This was about 1500 miles or so before the powertrain went out. No warning lights come on, front calipers, brake hoses, and pads were changed out. It it still doing the same thing. It will shimmy and shake when you try to accelerate even just a bit, and then sometimes it will just start acting fine, after acting up. Diagnostics were ran at two shops (no warning lights on) and I cannot figure out what it wrong. I am pretty well versed with figuring out problems, and I think there is something else going on and that dealer did not want to fix the problem. Help!!!!! ??? The drive belt, timing belt, and front Dr side hub changed out. Regular oil changes done. Wondering if its the tranny???