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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
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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:
- 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
4.2 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 2
Fun but not for rough play.
Color: Orange
The ball contented our “golden” Jaxson for about 15 minutes. He then thought it was a regular ball and it’s just a little delicate for a big dog. I just wrote it off as a loss. Great idea but should be more durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
★★★★★ 5
Long lasting charge!
Color: Orange
My 50 pound goldendoodle absolutely loves this ball. It keeps a charge for a long time. It turns off
When it’s not being used and we play with it every day.!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
★★★★★ 5
Fun toy
Color: Orange
My standard poodle loves this toy. It holds a charge for several hours and is well made
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 5
Great Value Toy
Color: Crinkle Duck (Blue), Size: Large, Color: Crinkle Duck (Blue), Size: Large
This toy has been one of my dog’s absolute favorites. He gets excited every time he sees it and will carry it around the house, toss it in the air, and keep himself entertained for a long time. The shape and texture seem perfect for him, and it quickly became one of his go-to toys over everything else in his basket.
What I really like is that it holds up reasonably well for the price. It’s definitely not indestructible, and after a lot of play, it will sometimes start to rip—usually around the feet first since that’s where my dog tends to grab and chew the most. But honestly, considering how affordable it is, I don’t mind replacing it when needed. It’s inexpensive enough that rebuying feels worth it because he genuinely loves it that much.
I’d rather keep buying a toy he is obsessed with than spend more on something that just sits untouched. It’s fun, cute, and keeps him happy, which is what matters most. Overall, I’d definitely recommend it for dogs who love plush toys and playful chewing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
Best affordable squeaker toy
Color: Crinkle Chicken (Brown), Size: Large, Color: Crinkle Chicken (Brown), Size: Large
my dog is obsessed with this toy, this has became his new comfort toy and after having this for about four months the legs are falling off but it’s very durable. The squeaker also moved from the head of the chicken to the body of the chicken but that’s after it was played with every single day. I love that it has two squeakers and it’s the perfect toy for my dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
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