B&M Shift Improver Kit 65-87 Th400 - 20260
$77.15
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B&M Shift Improver Kit 65-87 Th400 - 20260
$77.15
The B&M Shift Improver kit for 1965-1987 GM TH400, TH375 and TH475 automatic transmissions provides two calibration options. Heavy Duty gives firm positive shifts without sacrificing driver comfort, while Street/Strip provides firmer, quicker shifts for performance applications. The kit is intended for street, towing, off-road and street/strip use.