The possibilities include:
* Automatic: If it's an automatic, it'll have a gear selector lever (typically on the steering column or center console) with positions like Park (P), Reverse (R), Neutral (N), Drive (D), and possibly Low (L) or 1, 2, etc. for manual gear selection. Shifting is done by moving the lever to the desired position.
* Manual: If it's a manual transmission, it will have a gear stick (usually on the floor) and a clutch pedal. Shifting requires depressing the clutch pedal, moving the gear stick to the appropriate gear (typically 1, 2, 3, 4, 5, and Reverse), and then releasing the clutch pedal smoothly.
Without knowing the specific transmission type of your 1989 Dodge Spirit, it's impossible to give you more precise instructions on how to shift.
