I have two 4l60e transmissions for sale there is a 4 wheel drive one and a two wheel drive one.  I have never used them but to my knowledge the 4 wheel drive one is fine it came out of  a 2002 gmc sierra and the two wheel drive one slips I believe it came out of a 1999 chevy suburban       The cleaner th350 came out of a v6 powered 1984 pontiac grand prix and it is good.  The dirty one comes out of a i4 powered chevy vega not sure if its good or not also have two torque convertors, dont know anything about them besides there for stock application.         Need to sell trying to move, open to any offer for which ever one you want. More pics upon request.