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Description
Fits GM A-BODY Crossmember Spacer, 4L60 Transmission Mount Adapter Kit 12657HKRThis Hooker BlackHeart LS Swap transmission mount adapter kit is part of the most comprehensively engineered system of mounting components, headers, and exhaust systems available for this application. The entire Hooker BlackHeart swap system is designed to decrease your total swap installation effort and cost while increasing the engineered quality of your vehicle and the compatibility of this component with other popular aftermarket components.
This Hooker BlackHeart LS Swap transmission mount adapter kit is part of the most comprehensively engineered system of mounting components, headers, and exhaust systems available for this application. The entire Hooker BlackHeart swap system is designed to decrease your total swap installation effort and cost while increasing the engineered quality of your vehicle and the compatibility of this component with other popular aftermarket components.
Features:
- Machined aluminum construction
- Designed as part of a fully-engineered LS swap mounting system
- Facilitates installation of a GM 4L60-4L70 transmission into any LS swapped 1968-72 A-bodyutilizing the Hooker 71222007HKR transmission crossmember
- Designed for compatibility with an aftermarket Prothane 7-1604 polyurethane transmission mount or a stock replacement rubber mount of equivalent installed height
- Spacer only-bolts not included
Specs:
| Application | 1964-67 GM A-Body |
|---|---|
| Application | 1968-72 GM A-Body |
| Bracket Finish | Natural |
| Bracket Material | Aluminum |
| Brand | Hooker BlackHeart |
| Color | Silver |
| Emission Code | 5 |
| Engine | GM Gen III/IV/IV (LS/LT) |
| Exhaust Series | Hooker BlackHeart |
| Finish | Natural |
| Material | Aluminum |
| Motor Type | GM LS |
| Product Type | Transmission Mount |
| Thickness | 1" |
| Transmission | 4L60E |
| Transmission | 4L65E |
| Transmission | 4L70E |
| Transmission Type | 4L60-4L70 |
| Type of Component | Spacer |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1964-1970 | Pontiac | Tempest | Base |
| 1964-1972 | Pontiac | LeMans | Base |
| 1964-1969 | Pontiac | Tempest | Custom |
| 1964-1969 | Pontiac | Tempest | Safari |
| 1970-1972 | Buick | GS | Base |
| 1970-1972 | Buick | GS 455 | Base |
| 1970-1972 | Buick | Skylark | 350 |
| 1964-1972 | Buick | Skylark | Base |
| 1968-1972 | Buick | Skylark | Custom |
| 1964-1972 | Buick | Sportwagon | Base |
| 1964-1972 | Chevrolet | Chevelle | Base |
| 1967-1972 | Chevrolet | Chevelle | Concours |
| 1969-1972 | Chevrolet | Chevelle | Concours Estate |
| 1969-1972 | Chevrolet | Chevelle | Greenbrier |
| 1968-1972 | Chevrolet | Chevelle | Malibu |
| 1968-1972 | Chevrolet | Chevelle | Nomad |
| 1964-1972 | Chevrolet | Chevelle | SS |
| 1964-1972 | Chevrolet | El Camino | Base |
| 1968-1972 | Chevrolet | El Camino | Custom |
| 1968-1972 | Chevrolet | El Camino | SS |
| 1971-1972 | GMC | Sprint | Base |
| 1972 | GMC | Sprint | Custom |
| 1964-1972 | Oldsmobile | Cutlass | Base |
| 1972 | Oldsmobile | Cutlass | Cruiser |
| 1968-1972 | Oldsmobile | Cutlass | S |
| 1968-1972 | Oldsmobile | Cutlass Supreme | Base |
| 1964-1972 | Oldsmobile | F85 | Base |
| 1964-1972 | Oldsmobile | Vista Cruiser | Base |
| 1964-1972 | Pontiac | GTO | Base |
| 1972 | Pontiac | LeMans | Luxury |
| 1970-1972 | Pontiac | LeMans | Sport |
| 1964-1971 | Oldsmobile | 442 | Base |
| 1968-1971 | Pontiac | Acadian | Base |
| 1970-1971 | Pontiac | GTO | The Judge |
| 1971 | Pontiac | LeMans | T37 |
| 1970 | Buick | GS 455 | GSX |
| 1969-1970 | Pontiac | LeMans | Safari |
| 1970 | Pontiac | Tempest | GT |
| 1968-1969 | Buick | GS 350 | Base |
| 1968-1969 | Buick | GS 400 | Base |
| 1964-1969 | Buick | Special | Base |
| 1966-1969 | Buick | Sportwagon | Custom |
| 1967-1969 | Chevrolet | Chevelle | 300 Deluxe |
| 1967-1968 | Chevrolet | Chevelle | 300 |
| 1965-1967 | Buick | Gran Sport | Base |
| 1964-1967 | Buick | Special | Deluxe |
| 1965-1967 | Chevrolet | Chevelle | Deluxe |
| 1964-1967 | Chevrolet | Malibu | Base |
| 1964-1967 | Oldsmobile | Cutlass | Holiday |
| 1967 | Oldsmobile | Cutlass | Turnpike Cruiser |
| 1964-1967 | Oldsmobile | Vista Cruiser | Custom |
| 1964-1967 | Pontiac | Beaumont | Base |
| 1964-1966 | Oldsmobile | F85 | Deluxe |
| 1966 | Oldsmobile | F85 | Holiday |
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 964 reviews
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Product Reviews
★★★★★ 3
Not for aggressive chewers
Size: Medium Chew Stick, Style: Peanut Butter
Not for aggressive chewers. Our dog tore pieces off within minutes
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
★★★★★ 2
Not very strong
Size: Medium Chew Stick, Style: Peanut Butter
We have a different bone from this company that my dogs love and it’s been indestructible for my hard chewers, but NOT this one. Within 20min of chewing he was pulling pieces off. It’s not nearly as tough as the other one we have. Pretty disappointed.
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Reviewed in the United States on January 18, 2026
★★★★★ 1
Recommended for Seniors, Not for Chewers
Size: Medium Chew Stick, Style: Pork Sausage
My 12lb dog loves Playology toys because of the long-lasting scent that's stimulating for her (even though I can't detect the smell). I got this toy because I wanted to add a different texture to her toy bin since most of her toys are rope & plush. Unfortunately, after only 10 minutes of playing with this toy, she managed to tear the pieces of the rubber off and I had to take it away so she doesn't choke on the pieces that were breaking off. Now I see why this toy's recommended for senior dogs. Definitely not recommended for active dogs or heavy chewers.
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Reviewed in the United States on July 27, 2024
★★★★★ 5
Very well made and helps clean teeth and mouth! Great for all age dogs!s!
Size: Medium Chew Stick, Style: Peanut Butter, Size: Medium Chew Stick, Style: Peanut Butter
My pup absolutely loves it and it's helping him with teething. It doesn't break off in a bunch of big pieces, just tiny pieces. He spits out the little pieces thankfully! Very well made and smells appetizing to dogs! It definitely helps clean his teeth & the rest of his mouth!
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Reviewed in the United States on April 6, 2025
★★★★★ 5
Mini Aussie LOVES
Flavor Name: Peanut Butter, Size: Large, Flavor Name: Peanut Butter, Size: Large
My little Meg loves these chew bones, she sneaks in and steals them from our Golden Retriever and our Great Pyrenees. She chews the orange covering off in minutes and the under bone lasts a few weeks.
The dogs steal them from each other all the time, even though I buy them each one.
Highly recommend if you have a super chewer, just be mindful the orange cover is easily chewed off.
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Reviewed in the United States on May 13, 2024