Where can you find a diagram of the 4T60E transaxle?

Answer

Generic Answer:

Your best and most complete diagram can be found in the Repair Manual of the particular car you are talking about. To order the repair manual look for the address in the rear of the owners manual.

4T60E Specific Information:

Specific images for your transmission is available here:

http://transmissionrepairboston.com/techinfo/gm_th4t60e_tech.asp