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rigid Mono-Drive hub
The coating is either the world-famous thermic black which protects the off-brake areas of the rotor from corrosion such as inside the pad swept area and inside the hub
Improved Air Flow For Improved Performance
Built with 5052 aluminum brackets and heavy duty solenoids to provide positive and consistent 1-2 shifts
25" outlet
B&M Transmission Speedo Port Plug Gm400 (20301) 17361 rigid Mono-Drive hubB&M Racing & Performance brings you this billet aluminum speedometer port block off plug that fits GM TH400 transmissions. This plug is used to block the mechanical speedometer gear port when upgrading to an electronic speedometer and includes a replaceable Buna N rubber o ring. It features a black Mil Spec anodized finish for long lasting good looks, even in harsh conditions. Comes with hardware and instructions for a quick and easy installation.