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1991 Chevy Truck Radiator

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One of the biggest threats to automatic transmissions is heat. To help the factory cooler we added a second external B&M cooler in front of the radiator. Be sure to thoroughly flush out the factory cooler and lines prior to installing your new trans. Additionally we added a B&M temp gauge to the return line to keep track of the temps from the driver's seat.
1991 Chevy Truck Transfer Case - Trans-Action

One of the biggest threats to automatic transmissions is heat. To help the factory cooler we added a second external B&M cooler in front of the radiator. Be sure to thoroughly flush out the factory cooler and lines prior to installing your new trans. Additionally we added a B&M temp gauge to the return line to keep track of the temps from the driver's seat.  View Related Article