I wouldn't say it's under the reverse switch- a better description is that its in the shifter to body mount on the driver's side. I'm not finding it easily on Fastlane but it looks like this:



http://www.*********.com/ntparts/sb/oes_genuine/w0133-1642114.html

When the shift mechanism is functioning nominally there should be virtually no play at all between the crossshaft ( that holds all the shift "keys") and the mount.

It's been awhile since I dug into mine. I have a Haynes manual at home, so if you need further guidance, let me know and I will scan a page this weekend.

Rick

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