Say what? If your talking about above the gauges where the 4x4 light, brake light, etc..are.......I certainly havent ever noticed a shift light there (even when semi looking to see what they said).
FWIW I think that the shift light was an '80-'84 thing...I think that '85 and '86 trucks got the "Emissions" light instead of the shift light. My original '84 bezel has a shift light, while the '86 bezel that's currently in there has an emissions light.
According to my owner's manual, at least in '84, the shift indicator light was only used with the 300 I-6 and the 4 speed OD manual. The owner's manual describes it as a fuel economy aid.
FWIW I think that the shift light was an '80-'84 thing...I think that '85 and '86 trucks got the "Emissions" light instead of the shift light. My original '84 bezel has a shift light, while the '86 bezel that's currently in there has an emissions light.
According to my owner's manual, at least in '84, the shift indicator light was only used with the 300 I-6 and the 4 speed OD manual. The owner's manual describes it as a fuel economy aid.