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Description
B&M Shift Improver Kit - GM TH400 Transmissions - 20260Overview: The B&M Shift Improver kits feature two options to recalibrating your 1965 1987 GM TH400, TH375 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,
Overview:
The B&M® Shift Improver kits™ feature two options to recalibrating your 1965-1987 GM TH400, TH375 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 Towing or Street/Strip Use
- Eliminates Soft and Sluggish Shift
- Recalibrates Stock Transmissions
- Over 65 Years of B&M Quality
- Eliminates Shift Overlap
- Provides Crisp Shifts
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1965 - 1971 | Oldsmobile | 442 | ||
| 1965 | Oldsmobile | 98 | Base | |
| 1966 - 1980 | Oldsmobile | 98 | ||
| 1975 - 1986 | Chevrolet | K20 | ||
| 1967 - 1986 | Chevrolet | K20 Suburban | ||
| 1963 - 1972 | Chevrolet | Biscayne | ||
| 1969 - 1987 | Chevrolet | Blazer | ||
| 1968 - 1974 | GMC | C35/C3500 Pickup | ||
| 1969 - 1974 | GMC | G15/G1500 Van | ||
| 1969 - 1974 | GMC | G25/G2500 Van | ||
| 1970 - 1974 | GMC | G35/G3500 Van | ||
| 1970 - 1987 | GMC | Jimmy | ||
| 1966 - 1974 | GMC | K15/K1500 Pickup | ||
| 1967 - 1974 | GMC | K15/K1500 Suburban | ||
| 1975 - 1978 | GMC | K25 | ||
| 1979 - 1986 | GMC | K2500 | ||
| 1975 - 1978 | GMC | K25 Suburban | ||
| 1968 - 1980 | Oldsmobile | Delta 88 | ||
| 1965 - 1966 | Oldsmobile | Dynamic 88 | ||
| 1965 - 1972 | Oldsmobile | F85 | ||
| 1966 | Oldsmobile | F85 | Base | |
| 1966 | Oldsmobile | F85 | Deluxe | |
| 1966 | Oldsmobile | Jetstar 88 | ||
| 1973 - 1974 | Oldsmobile | Omega | ||
| 1975 - 1982 | Checker | Marathon | ||
| 1976 - 1977 | Pontiac | Grand LeMans | Base | |
| 1977 | Pontiac | Grand LeMans | Safari | |
| 1965 - 1977 | Pontiac | Grand Prix | ||
| 1975 - 1976 | Pontiac | Grand Safari | ||
| 1971 - 1975 | Pontiac | Grandville | ||
| 1965 - 1975 | Pontiac | LeMans | ||
| 1976 - 1977 | Pontiac | LeMans | Base | |
| 1976 - 1977 | Pontiac | LeMans | Sport | |
| 1977 | Pontiac | LeMans | Safari | |
| 1971 - 1980 | Oldsmobile | Custom Cruiser | ||
| 1973 | Buick | Apollo | ||
| 1971 - 1973 | Buick | Centurion | ||
| 1973 - 1977 | Buick | Century | ||
| 1964 - 1981 | Buick | Electra | ||
| 1965 - 1981 | Buick | LeSabre | ||
| 1970 - 1981 | Buick | Estate Wagon | ||
| 1973 - 1977 | Buick | Regal | ||
| 1965 - 1978 | Buick | Riviera | ||
| 1979 - 1986 | GMC | K2500 Suburban | ||
| 1977 - 1978 | GMC | K35 | ||
| 1979 - 1986 | GMC | K3500 | ||
| 1976 - 1978 | GMC | P15 | ||
| 1979 - 1980 | GMC | P1500 | ||
| 1975 - 1978 | GMC | P25 | ||
| 1979 - 1987 | GMC | P2500 | ||
| 1975 - 1978 | GMC | P35 | ||
| 1979 - 1987 | GMC | P3500 | ||
| 1987 | GMC | R1500 | ||
| 1987 | GMC | R2500 | ||
| 1987 | GMC | R2500 Suburban | ||
| 1987 | GMC | R3500 | ||
| 1971 - 1975 | GMC | Sprint | ||
| 1987 | GMC | V1500 | ||
| 1987 | GMC | V2500 | ||
| 1987 | GMC | V2500 Suburban | ||
| 1987 | GMC | V3500 | ||
| 1968 - 1975 | Oldsmobile | Cutlass | ||
| 1975 | Oldsmobile | Cutlass Salon | ||
| 1975 | Oldsmobile | Cutlass Supreme | ||
| 1978 | Oldsmobile | Toronado | ||
| 1968 - 1974 | GMC | C15/C1500 Suburban | ||
| 1967 - 1974 | GMC | C25/C2500 Pickup | ||
| 1967 - 1974 | GMC | C25/C2500 Suburban | ||
| 1969 - 1972 | Chevrolet | Brookwood | ||
| 1966 - 1974 | Chevrolet | C10 Pickup | ||
| 1967 - 1984 | Chevrolet | C10 Suburban | ||
| 1966 - 1974 | Chevrolet | C20 Pickup | ||
| 1967 - 1986 | Chevrolet | C20 Suburban | ||
| 1966 - 1974 | Chevrolet | C30 Pickup | ||
| 1967 - 1975 | Chevrolet | Camaro | ||
| 1973 | Chevrolet | Camaro | Base | |
| 1973 | Chevrolet | Camaro | RS | |
| 1973 | Chevrolet | Camaro | LT | |
| 1966 - 1975 | Chevrolet | Caprice | ||
| 1965 - 1972 | Chevrolet | Chevelle | Base | |
| 1965 | Chevrolet | Chevelle | Deluxe | |
| 1966 - 1971 | Chevrolet | Chevelle | ||
| 1966 - 1967 | Pontiac | Catalina | Safari | |
| 1968 - 1977 | Pontiac | Catalina | ||
| 1967 - 1968 | Pontiac | Firebird | Base | |
| 1967 | Pontiac | Firebird | HO | |
| 1967 - 1968 | Pontiac | Firebird | Sprint | |
| 1967 - 1968 | Pontiac | Firebird | 400 | |
| 1968 | Pontiac | Firebird | 350 | |
| 1969 - 1977 | Pontiac | Firebird | ||
| 1973 - 1975 | Pontiac | Grand Am | ||
| 1979 - 1986 | GMC | K1500 | ||
| 1977 - 1978 | GMC | K15 Suburban | ||
| 1979 - 1984 | GMC | K1500 Suburban | ||
| 1969 - 1974 | Chevrolet | K30 Pickup | ||
| 1969 | Chevrolet | Kingswood | Base | |
| 1972 | Chevrolet | Kingswood | ||
| 1973 - 1974 | Chevrolet | Malibu | Base | |
| 1970 - 1975 | Chevrolet | Monte Carlo | ||
| 1965 - 1967 | Buick | Gran Sport | ||
| 1970 - 1972 | Buick | GS | ||
| 1968 - 1974 | Buick | LeSabre | Base | |
| 1967 - 1974 | GMC | K25/K2500 Pickup | ||
| 1967 - 1974 | GMC | K25/K2500 Suburban | ||
| 1968 - 1974 | GMC | K35/K3500 Pickup | ||
| 1969 - 1974 | GMC | P15/P1500 Van | ||
| 1969 - 1974 | GMC | P25/P2500 Van | ||
| 1969 - 1973 | GMC | P35/P3500 Van | ||
| 1974 | GMC | P35/P3500 Van | Base | |
| 1969 - 1975 | Chevrolet | Nova | ||
| 1976 - 1980 | Chevrolet | P10 | ||
| 1975 - 1987 | Chevrolet | P20 | ||
| 1975 - 1987 | Chevrolet | P30 | ||
| 1987 | Chevrolet | R10 | ||
| 1987 | Chevrolet | R20 | ||
| 1987 | Chevrolet | R20 Suburban | ||
| 1987 | Chevrolet | R30 | ||
| 1987 | Chevrolet | V10 | ||
| 1987 | Chevrolet | V20 | ||
| 1987 | Chevrolet | V20 Suburban | ||
| 1987 | Chevrolet | V30 | ||
| 1975 - 1978 | GMC | C15 | ||
| 1979 - 1986 | GMC | C1500 | ||
| 1975 - 1978 | GMC | C15 Suburban | ||
| 1979 - 1984 | GMC | C1500 Suburban | ||
| 1975 - 1978 | GMC | C25 | ||
| 1979 - 1986 | GMC | C2500 | ||
| 1975 - 1978 | GMC | C25 Suburban | ||
| 1979 - 1986 | GMC | C2500 Suburban | ||
| 1966 - 1967 | Chevrolet | Chevy II | Base | |
| 1967 | Chevrolet | Chevy II | Nova SS | |
| 1967 - 1977 | Chevrolet | Corvette | ||
| 1965 - 1975 | Chevrolet | El Camino | ||
| 1969 - 1974 | Chevrolet | G10 Van | ||
| 1969 - 1974 | Chevrolet | G20 Van | ||
| 1966 - 1973 | Pontiac | GTO | ||
| 1965 - 1966 | Pontiac | Star Chief | ||
| 1971 - 1974 | Pontiac | Ventura | ||
| 1970 - 1974 | Chevrolet | G30 Van | ||
| 1965 - 1967 | Buick | Special | ||
| 1965 - 1976 | Cadillac | Calais | ||
| 1965 - 1981 | Cadillac | DeVille | ||
| 1965 - 1979 | Cadillac | Eldorado | ||
| 1965 - 1984 | Cadillac | Fleetwood | ||
| 1974 - 1983 | Cadillac | Fleetwood | Base | |
| 1974 | Cadillac | Fleetwood | 75 | |
| 1974 | Cadillac | Fleetwood | 60 Special | |
| 1963 - 1975 | Chevrolet | Bel Air | ||
| 1967 | Oldsmobile | Cutlass | Turnpike Cruiser | |
| 1967 - 1968 | Oldsmobile | Delmont 88 | ||
| 1977 - 1986 | Chevrolet | K30 | ||
| 1975 - 1986 | Chevrolet | C20 | ||
| 1975 - 1986 | Chevrolet | C30 | ||
| 1977 - 1987 | Chevrolet | G10 | ||
| 1975 - 1987 | Chevrolet | G20 | ||
| 1975 - 1987 | Chevrolet | G30 | ||
| 1963 - 1975 | Chevrolet | Impala | ||
| 1977 - 1986 | Chevrolet | K10 | ||
| 1983 | Chevrolet | K10 | Custom | |
| 1983 | Chevrolet | K10 | Scottsdale | |
| 1983 | Chevrolet | K10 | Silverado | |
| 1967 - 1984 | Chevrolet | K10 Suburban | ||
| 1978 | Buick | Skyhawk | ||
| 1965 - 1983 | Cadillac | Commercial Chassis | ||
| 1976 - 1978 | Cadillac | Eldorado | Base | |
| 1976 - 1978 | Cadillac | Eldorado | Cabriolet | |
| 1976 - 1978 | Cadillac | Eldorado | Biarritz | |
| 1976 | Cadillac | Eldorado | Bicentenial Edition | |
| 1980 - 1981 | Cadillac | Fleetwood | Brougham | |
| 1980 - 1981 | Cadillac | Fleetwood | Brougham d'Elegance | |
| 1980 - 1983 | Cadillac | Fleetwood | Formal | |
| 1987 | Cadillac | Brougham | ||
| 1976 - 1978 | Cadillac | Seville | ||
| 1977 - 1986 | Chevrolet | K5 Blazer | ||
| 1975 - 1986 | Chevrolet | C10 | ||
| 1965 - 1972 | Buick | Skylark | ||
| 1969 | Buick | Skylark | Base | |
| 1965 - 1970 | Buick | Wildcat | ||
| 1968 | Buick | Wildcat | Base | |
| 1975 - 1978 | GMC | C35 | ||
| 1979 - 1986 | GMC | C3500 | ||
| 1977 - 1978 | GMC | G15 | ||
| 1979 - 1987 | GMC | G1500 | ||
| 1975 - 1978 | GMC | G25 | ||
| 1979 - 1987 | GMC | G2500 | ||
| 1975 - 1978 | GMC | G35 | ||
| 1979 - 1986 | GMC | G3500 | ||
| 1981 - 1987 | GMC | G3500 | Rally | |
| 1981 - 1987 | GMC | G3500 | Rally STX | |
| 1981 - 1987 | GMC | G3500 | Vandura | |
| 1981 - 1987 | GMC | G3500 | Magnavan | |
| 1981 - 1987 | GMC | G3500 | Rally Camper Special | |
| 1981 - 1987 | GMC | G3500 | Vandura Special | |
| 1987 | GMC | G3500 | Rally Custom | |
| 1977 - 1978 | GMC | K15 | ||
| 1966 - 1974 | Chevrolet | K10 Pickup | ||
| 1966 - 1974 | Chevrolet | K20 Pickup | ||
| 1965 - 1969 | Pontiac | Tempest | ||
| 1966 - 1972 | Buick | Sportwagon | ||
| 1966 - 1968 | Pontiac | Tempest | Custom | |
| 1967 - 1970 | Pontiac | Executive | ||
| 1968 - 1970 | Pontiac | Tempest | Base | |
| 1968 | Pontiac | Tempest | Safari | |
| 1965 - 1966 | Oldsmobile | Starfire | ||
| 1968 - 1975 | Oldsmobile | Vista Cruiser | ||
| 1965 - 1977 | Pontiac | Bonneville | ||
| 1965 - 1967 | Pontiac | Catalina | Base | |
| 1966 | Pontiac | Catalina | 2+2 | |
| 1975 | Chevrolet | Laguna | ||
| 1975 | Chevrolet | Malibu | ||
| 1965 - 1967 | Chevrolet | P10 Series | ||
| 1969 - 1974 | Chevrolet | P10 Van | ||
| 1965 - 1967 | Chevrolet | P20 Series | ||
| 1969 - 1974 | Chevrolet | P20 Van | ||
| 1965 - 1967 | Chevrolet | P30 Series | ||
| 1969 - 1974 | Chevrolet | P30 Van | ||
| 1966 | Chevrolet | Suburban | ||
| 1969 - 1972 | Chevrolet | Townsman | ||
| 1974 | Chevrolet | Vega | ||
| 1968 - 1974 | GMC | C15/C1500 Pickup | ||
| 1975 | Buick | Century | Base | |
| 1975 | Buick | Century | Custom | |
| 1975 | Buick | Century | Luxus | |
| 1975 | Pontiac | Firebird | Trans Am | |
| 1975 | Pontiac | Grand LeMans |
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 |
| Manual Control | No |
| 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
4.3 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Very cute, good quality
Style: Lambchop, Size: 10", Style: Lambchop, Size: 10"
Our Two year-old Great Pyrenees rescue loves her Lambchop. She’s fairly gentle with it, but it did accidentally rip so we had replace it since she loves it so much. No fault of the product. The product is very well made, She just got a little rough with it.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
We <3 big lambchops
Style: White, Size: 24" Jumbo, Style: White, Size: 24" Jumbo
These are my vizsla's absolute FAVORITE toy. I mean, she doesn't leave the room without bringing at least one. We've bought several of these exact toys now and they're surprisingly durable- we've even put a few through the laundry. She loves to snuggle, nibble, and carry this toy like a security blanket. These are the big ones, so they get a little discolored from her grabbing them around the belly. The squeakers are pretty few and far between so it's generally not noisy unless she's super bored or excited. Get it, your dog will love it and they're cheaper than some of the small ones.
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Reviewed in the United States on March 7, 2026
★★★★★ 5
A Classic Toy My Dog Can’t Get Enough Of!
Style: Blue Birthday Hat, Size: 10.5"
The Multipet Lamb Chop Dog Plush Toy (10.5”, Cream) is an absolute winner in our house! This adorable, nostalgic plush is just as cute as it is entertaining, and my dog fell in love with it the moment it came out of the package.
Super Soft & Cuddly
The material is extra plush and velvety, making it perfect for dogs who love to snuggle. It feels well-made and not scratchy like some cheaper toys.
Squeakers That Keep Dogs Engaged
There are multiple squeakers inside, and they’re loud enough to keep your dog excited but not obnoxious. My pup carries it around proudly and squeaks it nonstop.
Great Size
The 10.5” size is ideal for both small and medium to large dogs. Big enough to cuddle, small enough to toss around easily.
Durable for a Plush Toy
While it’s not built for heavy destroyers (no plush toy truly is), it holds up surprisingly well to daily play and lots of shaking.
Overall:
The Multipet Lamb Chop is a fantastic combo of cuddly plush and squeaky fun. Perfect for fetch, snuggles, or as your dog’s new favorite companion. If your dog enjoys plush toys, this is definitely one to grab.
Highly recommended! 🐑🐶💛
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Reviewed in the United States on December 11, 2025
★★★★★ 5
BEST TOY!
Style: White, Size: 6"
I recently bought the Multipet INTERNATIONAL 843140 Lambchop Plush Squeak Toy Mini for my small dog, and it has quickly become her favorite toy. Here’s why this little squeak toy is a great addition to any pet’s collection:
Adorable Design
The Lambchop Plush Squeak Toy is absolutely adorable. It resembles the beloved character Lambchop, which adds a nostalgic charm for those who remember the classic TV show. The toy is well-crafted with a cute, friendly face and soft, plush material. Its small size makes it perfect for petite pets, and it’s just the right size for my dog to carry around and snuggle with.
Engaging and Fun
The built-in squeaker adds an extra layer of excitement for my pet. Every time she bites down, the squeak captures her attention and keeps her engaged for longer periods. It’s great for interactive play, fetch, and even as a comforting chew toy. My dog loves the noise it makes and often brings it to me to initiate playtime.
Durable Construction
Despite its soft and plush exterior, the Lambchop toy has proven to be quite durable. My dog is a moderate chewer, and after several weeks of play, the toy is still intact with no signs of wear and tear. The stitching is strong and has held up well against my dog’s playful bites and tugs. However, for very aggressive chewers, it might not last as long.
Easy to Clean
The toy is also relatively easy to clean. I’ve hand-washed it a few times to keep it fresh, and it dries quickly without losing its shape or squeak. The white color, while prone to getting dirty, can be easily spot-cleaned to maintain its appearance.
Perfect Size for Small Pets
At 6 inches, this toy is ideally sized for small dogs and even cats. It’s lightweight and easy for them to carry around. My dog can comfortably grip it in her mouth, and the toy is soft enough for her to cuddle with during nap time.
Value for Money
Considering its durability, engaging design, and the joy it brings to my pet, the Multipet Lambchop Plush Squeak Toy offers excellent value for money. It’s reasonably priced and provides hours of entertainment and comfort for my dog.
Overall Impression
Overall, the Multipet INTERNATIONAL 843140 Lambchop Plush Squeak Toy Mini is a fantastic toy for small pets. Its adorable design, engaging squeaker, and durable construction make it a worthwhile purchase. My dog loves it, and it has quickly become a staple in her toy collection. I highly recommend this toy to anyone looking for a cute and fun squeak toy for their small pet.
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Reviewed in the United States on June 18, 2024
★★★★★ 4
Great, but a little big…
Style: Lambchop, Size: 10"
Super soft and cute, I got this for my toy Cavapoo puppy. The different textures are perfect. It is a little bigger than I was expecting, and will probably be about the same size as my puppy when I get her, but I’m sure she’ll love it. I don’t know how safe it will be yet since I’ve yet to be able to watch her play with it, but I don’t see anywhere that could have loose strings for her to choke on, so I’d say it’s pretty safe. Overall a perfect toy for dogs, with a squeaker and nice textures for the dog to chew on.
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Reviewed in the United States on May 4, 2026