back up light question

EDIT............I was posting as you are. Sounds like something in the gearbox. Is there not an aluminum? gasket (only been about 20 years ago!!) on the switch? Maybe a thinner gasket?


Bill I'd pull the shifter rod off at the gearbox and manually put the reverse lever into gear and see if that works. This has just about got to be either a bad connection right in the switch connector, a bad switch, or something going on in the gearbox.

You should be able to put it into gear and measure continuity across the switch.