What gear ratio was stock for a 1988 Chevy K1500 4x4?

The stock gear ratio for a 1988 Chevy K1500 4x4 typically ranged from 3.08 to 3.73, depending on the engine and transmission options. Most commonly, the 3.42 ratio was popular for many configurations. However, some models equipped for towing or off-road use might have come with a 3.73 ratio. Always check the specific vehicle's specifications for accurate details.