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June 24, 2021 Service bulletin

This technical bulletin provides a procedure to test and replace the actuator bolts if the internal...

Chevrolet technical service bulletin 21NA146 for 2019 Chevrolet Silverado 1500 and 2019 GMC Sierra 1500.

Bulletin number
21NA146
Component
Equipment adaptive/mobility
Summary
This technical bulletin provides a procedure to test and replace the actuator bolts if the internal springs are found to have failed.

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