You can fix a broken linkage in a 1999 Navigator truck by adjusting its Gear Shift.
Show you the automatic transmission, passing gear linkage for a 79 Chevy 350 eng. truck
Bent shift linkage Frozen shifting linkage - try lubricating
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There is a detent cable that comes from the tranny. It connects to the bottom of the throttle linkage on the carb.
The reverse gear linkage would be attached to the transmission, not the transfer case.
linkage is sticking
Linkage is broken or loose - or trans pump shaft is broken ( big job)
how do you change the light on the gear shift of a 2003 Lincoln navigator
Which gear - 1,2,3,4,5,6???
Sounds like the linkage is loose