B&M TH400 Shift Improver Kit 29110BL Dual reservoir master cylinders have

Dual reservoir master cylinders have 1" bores and outlet ports on both sides for easy plumbing and installation

Shoulders adjust from 26" to 40" and the lap belt adjusts from 20" to 60"

3/8 in Head

A carbureted fuel pump that allows you to step up your performance by maintaining optimal line pressure and delivering high volume

B&M TH400 Shift Improver Kit 29110BL Dual reservoir master cylinders haveShift Improver Kit for 65 87 TH400 Transmission B&M'specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, and many other transmission products including cast deep aluminum transmission pans, transmission coolers, and automatic transmission fluid. B&M Performance and Off Road has been at the vanguard of the growing automotive aftermarket since the early