SKU: 11139755172

B&M Shift Improver Kit - GM TH400/475 Transmissions - 20261

Sale price$78.70 Regular price$87.45
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

B&M Shift Improver Kit - GM TH400/475 Transmissions - 20261Overview: 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

Overview:

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:

  • Perfect for Off-Road, Towing or Street/Strip Use
  • Eliminates Soft and Sluggish Shifts
  • Over 65 Years of B&M Quality
  • Eliminates Shift Overlap
  • Provides Crisp Shifts
  • Easy Installation

Application:

Year Make Model Submodel Engine Size
1988 Chevrolet R20 Custom Deluxe
1988 Chevrolet R20 Scottsdale
1988 Chevrolet R20 Silverado
1988 Chevrolet R20 Suburban
1989 Chevrolet R2500
1989 - 1990 Chevrolet R2500 Suburban
1988 Chevrolet R30
1989 - 1990 Chevrolet R3500
1990 Chevrolet V1500 Suburban
1988 Chevrolet V20 Suburban
1989 - 1990 Chevrolet V2500 Suburban
1988 Chevrolet V30
1989 - 1990 Chevrolet V3500
1988 - 1990 GMC C1500
1988 - 1990 GMC C2500
1988 - 1990 GMC C3500
1988 - 1990 GMC G1500
1988 - 1990 GMC G2500
1988 GMC G3500 Rally
1988 GMC G3500 Rally STX
1988 GMC G3500 Vandura
1988 GMC G3500 Rally Custom
1988 GMC G3500 Magnavan
1988 GMC G3500 Rally Camper Special
1988 GMC G3500 Vandura Special
1989 - 1990 GMC G3500
1988 - 1990 GMC Jimmy
1988 - 1990 GMC K1500
1988 - 1990 GMC K2500
1988 - 1990 GMC K3500
1988 - 1989 GMC P2500
1988 - 1990 GMC P3500
1990 GMC R1500 Suburban
1988 - 1989 GMC R2500
1988 - 1990 GMC R2500 Suburban
1988 - 1990 GMC R3500
1990 GMC V1500 Suburban
1988 - 1990 GMC V2500 Suburban
1988 - 1990 GMC V3500
1988 - 1990 Cadillac Brougham
1988 - 1990 Chevrolet Blazer
1990 Chevrolet C1500 Cheyenne
1990 Chevrolet C1500 Scottsdale
1990 Chevrolet C1500 Silverado
1990 Chevrolet C1500 454 SS
1990 Chevrolet C1500 WT
1988 - 1989 Chevrolet C1500
1988 - 1990 Chevrolet C2500
1988 - 1990 Chevrolet C3500
1988 - 1990 Chevrolet G10
1988 - 1990 Chevrolet G20
1988 - 1990 Chevrolet G30
1988 - 1990 Chevrolet K1500
1988 - 1990 Chevrolet K2500
1988 - 1990 Chevrolet K3500
1988 - 1989 Chevrolet P20
1988 - 1990 Chevrolet P30
1990 Chevrolet R1500 Suburban
1988 Chevrolet R20 Cheyenne

Specs:

Automotive Item Grade High Performance
Brand B&M
California Proposition 65 Chemical Name Cadmium and cadmium compounds
California Proposition 65 Required Yes
Emission Code 5
Gasket Included Yes
Instructions Included Yes
Product Type Automatic Transmission Valve Body Kit
Warning California Proposition 65
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 11139755172

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Beth
Los Angeles, US
★★★★★ 5
Great option for a great price
Size: 7.5, Color: Black
I love these sandals. They are well made, true to size and soft suede. They are lightweight and feel just like my UGG goldenstar sandals. (These are not as adjustable, so if you have narrow or wide feet, these may not be for you) These a great value for the money, especially for medium width feet. The strap across the toe is not adjustable, but fit my feet just fine. The ankle strap was a good length for me. And the Velcro is strong. These sandals are a great value for the money. I will probably start looking into kookaburra before I rush to buy the more expensive ones now.
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Reviewed in the United States on May 5, 2026
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Never received!! Very disappointed!!
Boise, US
★★★★★ 5
Quality, good looking shoes!
Size: 8.5, Color: Green
Absolutely perfect fit, design, and color. I'm so pleased with these sandals and as always with this brand, I am not in anyway disappointed. These shoes are so comfortable right out of the box. They clean up very nicely, and last forever. I am so glad I got these before they were sold out.
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Reviewed in the United States on April 30, 2026
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Marla
Los Angeles, US
★★★★★ 5
UGG Comfort Without the Premium Price
Size: 9, Color: Beige, Size: 9, Color: Beige
These sandals are super cute and incredibly comfortable. They have that classic UGG look and feel, but at a much more approachable price point. The footbed is cushioned and supportive, making them easy to wear for extended periods. The straps feel secure without rubbing, and the overall construction feels solid and well made. They’re lightweight but still have a sturdy sole with good traction. They pair effortlessly with casual outfits and have that relaxed, elevated vibe UGG is known for—just without the higher price tag. A great value for both style and comfort.
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Reviewed in the United States on February 20, 2026
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Diane
Draper, US
★★★★★ 5
Ugg comfy shoes
Size: 7, Color: Black
So comfortable and cute as well. I wore these the first time and had to have everyone touch them to see how the sole would squish. Fit well, and are lightweight as well.
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Reviewed in the United States on April 26, 2026
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Tracey PK
Massapequa, US
★★★★★ 4
Comfy
Size: 7.5, Color: Green
Another review said they look like orthopedic shoes and I agree. But they are very comfortable
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Reviewed in the United States on April 25, 2026

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