B&M Shift Improver Kit 88-94 Th400 - 20261
$87.45
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B&M Shift Improver Kit 88-94 Th400 - 20261
$87.45
The B&M Shift Improver kit for 1988-1994 GM TH400 and TH475 automatic transmissions provides Heavy Duty and Street/Strip calibration options. Heavy Duty delivers firm positive shifts for street use and towing, while Street/Strip provides harder, quicker shifts for high-performance use. The kit is designed to eliminate soft shifts and shift overlap and improve transmission performance.