As has been mentioned in other responses, the lockout switch is located on the transmission top cover and would most easily be dealt with on a bench. Remove the 4 allen head bolts holding the tranny to the bellhousing--I use a 3/4" long section cut from a 3/8" allen wrench. This allows you to use either a 3/8 swivel socket and extensions or a long handled 12 point box end wrench. Pull the transmission/o'drive down as a unit. Question--If you are pulling the transmission out--what's the condition of the clutch? how old is the pilot bearing in the crankshaft? If electrical switches and gaskets were left off the job, what about the rest of it? And yes, you can pull the o'drive off the intermediate housing.