K 2500 Truck 4WD V8-379 6.2L DSL VIN J FI (1985)
Throttle Valve Cable/Linkage: Adjustments
3L80/3L80-HD (THM 400/475)
Detent Downshift Switch Adjustment
Figure 7A-11 Detent Downshift Switch
1. Preset switch by pressing the plunger as far forward as possible.
2. Press accelerator pedal down to a wide open throttle position and the switch will self adjust.