I personally would rather rebuild a gear machine anyday. All a Trane is, is alot of work. Too much heavy lifting and no thinking, except the thinking if your rigging will hold all of that iron. It also takes alot longer to rebuild. I can rebuild a York and a Carrier in 2 days, compared to at least 3 to 4 days for a Trane. Thats only if you have room overhead; get ready for a marathon in low clearance situations. ( I am just speaking of the compressor rebuild part) Lets not even talk about if you lose a motor. Replace just the motor on the York and Carrier, pull the entire compressor for the Trane. Remember, Its hard to stop a Trane; unless you send it cold condenser water, then it will derail on oil loss!