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If you have a 4.3 vortec,
Locate and open radiator drain plug into container. (apx 3 gallons) Remember antifreeze is posion!!! Remove radiator cap. Loosen intake hose clamp, Loosen the two wing nuts on the plastic part of the air intake atached to the top of the radiator and remove. Loosen the radiator clamps and remove the hoses from the radiator. Loosen the two transmission lines.(DO NOT BEND if possible) Remove the two bolted clamps on the top. Carefully lift straight up and out.
When replacing, be carefull not to cross-thread the transmission lines.

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18y ago

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