A 1993 Ford Bronco with a five-speed manual transmission uses
gear oil, not transmission fluid. The specific type and quantity depend on the exact transmission in your Bronco. Your owner's manual is the best source for this information. It will specify the correct weight of gear oil (e.g., 75W-90, 80W-90) and the capacity in pints or quarts.
Without the owner's manual, contacting a Ford dealership or a parts store with your Bronco's VIN will allow them to identify the correct transmission and provide the correct oil type and capacity. Trying to guess could lead to damage to your transmission.