Ok. So... I've had a 1994 Legacy L for quite sometime. Its got 128000 on it and still runs like the day it was new, until recently. I discovered that someone who had serviced the car had put 185-65-14s on the drive wheels and 185-70-14s on the non drive wheels and the car  has a ton of binding a clunking.  
  
I replaced the front CV shafts and the binding improved significantly. I put brand new correct size tires and again it improved but it still binds.  
  
I put a fuse in FWD slot and the bind went away, so the Duty 'C' Solenoid is still good.  
  
I checked the tranny fluid and it is as pink as it should be. 
  
I checked the rear end and there was WAY too much fluid in there. I still have to drain some of it out. 
  
I still have the torque bind. 
  
I was told a tranny flush would fix the problem, although i don't understand how this would solve it because the transmission isn't where the cluck is coming from. How would a tranny flush solve the problem, the fluid isnt fed through the rear end? Can someone please clarify this. 
  
Also, i was told it may be the MPT clutches. How would I absolutely determine that that's the problem without dropping the rear end and/or transmission? This also refers to the scored clutch pack because of dirty ATF, which again confuses me. 
  
I was told that the clutch pack may be scored because of the uneven tires. 
  
I'm sure i have heard a few other theories, but i'm looking for a clarification on a few things as well as MPT clutch part numbers, where to get them besides a dealer, etc.  
  
Is there anyone that can help me out. It would be greatly appreciated. I need this solved before i do more damage.