The B&M® Shift Improver kits™ feature two options to recalibrating your 1988-1994 GM TH400 and TH475 automatic transmissions. First is the HEAVY DUTY set-up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET/STRIP set-up. Be warned, this will deliver firm positive shifts you will feel, along with easily chirping the tires when shifting somewhat aggressively. This setting is recommend for high performance street/strip use, or for competitive events when you want the hardest, quickest shifts possible from a shift improver kit.

Features:
The B&M® Shift Improver kits™ feature two options to recalibrating your 1988-1994 GM TH400 and TH475 automatic transmissions. First is the HEAVY DUTY set-up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET/STRIP set-up. Be warned, this will deliver firm positive shifts you will feel, along with easily chirping the tires when shifting somewhat aggressively. This setting is recommend for high performance street/strip use, or for competitive events when you want the hardest, quickest shifts possible from a shift improver kit.

More From This Category

TCI 4-Speed 700R4 Forward-Pattern Gate Plate Kit for Outlaw Series Shifter.

TCI 4-Speed 700R4 Forward-Pattern Gate Plate Kit for Outlaw Series Shifter.

$106.06

Motive Gear Differential Bearing Kit, Timken, For TOYOTA 4RUNNER 1984–1995, Kit

Motive Gear Differential Bearing Kit, Timken, For TOYOTA 4RUNNER 1984–1995, Kit

$264.20

Sonnax 10-Clutch Drum, Hub & Piston Kit, GM, Powerglide, Each

Sonnax 10-Clutch Drum, Hub & Piston Kit, GM, Powerglide, Each

$293.14