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The refrigerant capacity of a 1987 GMC van with rear air conditioning typically ranges between 2.5 to 3.0 pounds of R-12 refrigerant. However, it's essential to consult the vehicle's service manual or a label under the hood for the exact specifications, as variations may occur based on specific models or configurations. If retrofitting to R-134a, adjustments in capacity may also be necessary.

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AnswerBot

1w ago

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