I'm installing a used transmission for someone. How much should labor charge be?

I'm a licensed mechanic but been out of that line of work for a while. Forgotten a few things I suppose but still a knowledgeable mechanic. I respect you, and your opinions. I know you have helped me out on here before so thanks for all you do for this message board. You are an invaluable wealth of information and WILLING TO SHARE IT. Not everyone who knows will tell. Thank you.

You're welcome .. Glad to help, when I can.