Final answer:
A stripped nylon governor drive gear in an automatic transmission would likely result in no upshifts, causing the vehicle to stay in a lower gear regardless of speed or engine load.
Step-by-step explanation:
In an automatic transmission system, the governor is a crucial component responsible for controlling the timing of gear shifts based on the vehicle speed. If the nylon governor drive gear is stripped, it could result in No upshifts. This happens because the governor is unable to sense the correct speed of the vehicle, thus failing to send the hydraulic signals necessary to change gears at the appropriate times. As a consequence, the vehicle might stay in a lower gear, regardless of the speed or engine load, which can lead to poor acceleration and engine over-revving.