What type of rearend does a 1988 Chevy crew cab dually 4x4 has?

The 1988 Chevy crew cab dually 4x4 typically comes with a GM 14-bolt rear axle. This heavy-duty rearend is known for its strength and durability, making it suitable for towing and hauling. Depending on the specific model and options, it may have either a semi-float or full-float design, with a differential ratio that varies based on the intended use. Always check the vehicle's specifications for the exact configuration.