I don't recall the final bill. It wasn't cheap. I do know the hourly rate they charged and that is $89.90. It took them a several hours and I know there was some cost for disposal of the fluid in the differential, plus some cost for refilling the fluid. Three or four hours? I don't know. I was oggling the 68 Mustang they had in the back showroom that had been tricked out with a 720 HP engine, beautiful orange and black paint, and papers showing the background findings by Barrett-Jackson. I guess they got it from them. Think they are a fancy auction company. Still, cool.
All I know is it was beautiful, and then my gears were done.
PS - I got pics, but that has nothing to do with V6s or gears.