91chevyss ; lets get visual, it helps me. Which do YOU have?
Plate for 700r4 :
this will have a thicker plate on top. Spacer plate sometimes ''stepped''... one side is raised , other side is depressed since the plate is ''stamped'' that way
4L60E plate (modifed by me):
This plate, look close: is machined on top flat side. I machine these down to increase area for more frictions & steels. Normally this plate is flat on top. You set friction directly against this plate, no spacer needed like the thin plate in other photo.