How come there is no estimate on transmission replacement on any model?????

This is what my labor rate program shows; Tranny remove and install 7.6 hours (average around here is about $600.00 to $800.00) Remove,Overhaul and Install 17.1 hours (I would have to call my tranny guy to get this estimate) If your installing a used tranny they will also charge for fluid,flushing cooler lines and misc. Also owners choice;New filter and gasket,seals and misc. Optional while tranny is out;Tranny mount/s,lines possible switches,sensors. Price on used tranny depends on mileage. http://car-part.com will show salvage yards in your area. Price on complete job would require calling at least 6+ shops to see what they would charge and ask about there warranty.