B&M 20248 Turbo 350, Turbo 400, Turbo 700R4 governor recalibration kit. The B&M GM Governor recalibration kit allows you to adjust the mile per hour shift points of your transmission after it is installed. It is very useful if you have a vehicle that is lightweight, has a low rear end gear ratio or is a conversion. Installs in a few minutes via access through the governor cover on the side of your transmission.
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