rick 427. I appreciate your help. So , last night , before reading your response, I pulled the pan and inspected the selector , just to insure that it wasn't simply skipping reverse . After seeing how it is designed I realize that was basically impossible. I was planning on removing and inspecting the rear servo/accumulator this evening, but not sure that is the correct direction now. What would I need to do to verify that the problem is in the 3rd gear drum... tear the tranny down? Also, is there a animation or illustration showing the oil distribution on these things... a flow diagram ? Thanks again for your input.