What is the freon capacity on a 1988 suburban with dual ac?

The freon capacity for a 1988 Chevrolet Suburban with dual air conditioning is typically around 3.5 to 4 pounds of R-12 refrigerant. However, it's important to check the specific vehicle’s service manual for precise specifications, as variations may exist based on the configuration and any modifications. If converting to R-134a, the capacity may differ, so adjustments would be necessary.