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Overdrive Disable Switch – Can I install an overdrive disable switch on my truck to prevent shifting in and out of 5th gear?

April 26, 2017disable Gear install OverDrive shifting Switch truck

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Overdrive Disable Switch – Can I install an overdrive disable switch on my truck to prevent shifting in and out of 5th gear?

1 Answer

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10 Posted

A. The latest transmission calibrations for MY01 and MY02 pickups are capable of receiving a switch input that will inhibit a 4-5 upshift. GM has produced an O/D disable switch kit and it is available through GM dealers. MY03 and forward, GM pickups have the O/D disable switch installed from the factory. GM Dealers can reference Service Bulletin Doc ID 1243294 for further information.