I was the one who was having 700r4 problems. I took the Blazer to AAMCO of all places and this is what I recieved. They told me that for $49.50 they could tell me exactly what was wrong with my trans. Thney call and tell me that the problem must be internal as the check they did of the "external" was ok. Hoses and cables all connected and the fluid ok, (that was the $49.50). They say that they will have to remove the trans and disassemble the unit for further inspection. They want to charge me $780.00 to remove and install. WOW! Then they say that if I get them to do the repair, thery will waive the previouse fees and only charge me for the labor and parts of the rebuild. Of course the rebuild will cost $2850.00! I looked the parts up that were bad and they come to $600.00. The rest is in labor. They tell me that the cost for thier parts are almost $1200.00. They also said that if I want them to put it back together it will still cost the $780.00 and no repair will have been done. I told them to not re-assemble the trans and to leave it out, they say its company policy to put the trans assembled back in the vehicle. Has anyone else been burned this way from this company?