TransGo Boost Valve

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The TransGo A1-LU-BST Boost Valve for your 2001-2004 GM 6.6L Duramax Allison Transmission controls fluid flow to the converter clutch, and reduces main line pressure from 255 PSI t o 155 PSI when the converter clutch applies. In the LB7 transmission the TransGo A1-LU-BST valve allows the amount of cut-back to be controlled so that main line stays at up to 190 PSI. Features: Addresses Torque Converter Slip Fits 2001-2004 GM 6.6L Duramax w/ Allison Transmission Show more