82-25-16(S) Upshift Indicator Light
The 1983 "Pony" Fuel Economy Leader F100 with a 4.9L engine had an upshift indicator light. But many other Bullnose trucks got the label in the warning bezel, but without a light behind it. These TSB's explain that this is correct, in spite of the owner's manuals saying otherwise.
But, note that there are two TSB's here: 82-25-16 and 82-25-16-S. The latter is a supplement to the original TSB, and is included as Page 3 of the document.
But, note that there are two TSB's here: 82-25-16 and 82-25-16-S. The latter is a supplement to the original TSB, and is included as Page 3 of the document.