Just splice a toggle into the clutch disconect, or if it is an auto the park nutral switch. Turn it off and it wont do crap like the clutch is not pushed in.
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Silver 98 2500 Quad Cab long bed, 12 valve, NV4500. No cat, no muffler little AFC work no plate, little timing, KDP victim now tabbed. Soon to have 2001 cab with all the options and a new color!