B&M

B&M 87-91 GM TH400 375 m40

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SKU: BMM20261
Automatic Transmission Shift Kit, Shift Improver, TH400 1988-90, Kit

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Regular price $71.29
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Shift Improver Kit for TH-400 (3L80) Automatic 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 1950s. Racers themselves, B&M's founders identified the needs of local performance enthusiasts and developed products to fill those needs. B&M'specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, automatic shift handles, extended transfer case handles, cast deep aluminum transmission pans, differential covers, transmission coolers, power steering coolers, automatic transmission fluid, and transmission accessories for performance street, truck, Jeep, and off-road applications.

Vehicle Applications:

  • 1988-1989 GMC R2500
  • 1988-1990 GMC R2500 Suburban
  • 1988-1990 GMC G2500
  • 1988-1990 GMC K1500
  • 1988-1990 GMC V3500
  • 1989-1990 Chevrolet C1500
  • 1988-1989 GMC P2500
  • 1988-1990 GMC C3500
  • 1988-1990 GMC G3500
  • 1989-1990 Chevrolet V2500 Suburban
  • 1990-1990 Chevrolet R1500 Suburban
  • 1990-1990 GMC V1500 Suburban
  • 1989-1990 Chevrolet C3500
  • 1989-1990 Chevrolet V3500
  • 1988-1990 GMC C2500
  • 1988-1990 GMC Jimmy
  • 1988-1990 GMC K2500
  • 1988-1990 GMC R3500
  • 1988-1990 GMC V2500 Suburban
  • 1989-1990 Chevrolet C2500
  • 1988-1990 GMC C1500
  • 1988-1990 GMC G1500
  • 1989-1990 Chevrolet K3500
  • 1989-1990 Chevrolet R2500 Suburban
  • 1988-1990 Cadillac Brougham
  • 1988-1990 GMC K3500
  • 1988-1990 GMC P3500
  • 1989-1990 Chevrolet Blazer
  • 1989-1990 Chevrolet G10
  • 1989-1990 Chevrolet G20
  • 1989-1990 Chevrolet G30
  • 1989-1990 Chevrolet K1500
  • 1989-1990 Chevrolet K2500
  • 1989-1990 Chevrolet R3500
  • 1990-1990 Chevrolet V1500 Suburban
  • 1990-1990 GMC R1500 Suburban
  • 1989-1989 Chevrolet P20
  • 1989-1989 Chevrolet R2500
  • 1989-1990 Chevrolet P30

    Fits 1988-1994 Chevrolet, Buick, Olds, Pontiac, GMC TH400 Automatic Transmissions.

  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
  • Improves Transmission Life
  • Transmission Removal Not Required
  • Product Description:

  • Automatic Transmission Shift Kit
  • Shift Improver
  • TH400 1988-90
  • Kit
  • 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 & Off-Road has been at the vanguard of the growing automotive aftermarket since the early 1950s. Racers themselves, B&M’s founders identified the needs of local performance enthusiasts and developed products to fill those needs. B&M specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, automatic shift handles, extended transfer case handles, cast deep aluminum transmission pans, differential covers, transmission coolers, power steering coolers, automatic transmission fluid, and transmission accessories for performance street, truck, Jeep, and off-road applications.