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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
4.2 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Perfect for Great Danes
Perfect for a Great Dane !
My Great Dane loves this Benebone ❤️
As she is beyond hard to find toys for as she is an aggressive chewer and goes throw toys fast.
Functionality 10 out 10
Playability 10 out 10
Big Dog Durability 10 out 10
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026
★★★★★ 5
Great Chew Toy
We have a Boerboel, and she destroys all toys. And I do really mean ALL toys. But Benebones hold up great! They're truly impossible to actually break. They will eventually get flaky the more they chew on them, and once they get super flaky, you'll need to replace them. But I'd say with our super chewer, who chews on them multiple times a day, we only have to replace Benebone products about once a month. These are a must have if you have a super chewer.
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Reviewed in the United States on July 3, 2024
★★★★★ 4
Well worth the money!
Spent hundreds of dollars trying to find something that would last and something my 2 Pitties would not destroy in and hour and also something they would continue to use. Search is over..
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Reviewed in the United States on December 27, 2022
★★★★★ 5
Benebone... Best dog toy!!!!!
This is my dog's fave toy hands down. The Benebone brand is the only brand of bone I buy. My dog weighs 85 pounds and can really chew on a toy and these bones hold up well. They are the best in my opinion. They have several different flavors. He likes the bacon and PB. I love how Amazon has the "buy again" option. It just makes it so easy to repurchase your items. I usually buy the "Y" shape b/c it's easy for him to hold between his paws. BUT.... Sometimes I will buy the 4 pack if I need a good deal.
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Reviewed in the United States on April 16, 2025
★★★★★ 5
No more dental cleanings!!!
I have a 68lb Pitt mix who has consistently chewed on her bone since it was delivered over 4 years ago and she has just barely chewed the nubs down. This bone is indestructible and will keep your dog’s teeth clean. Daisy is 9 years old and does not have any tartar build up and has never had a dental cleaning. She just had her check up and vet said her teeth and gums look great!! Highly recommend this for your dog!
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Reviewed in the United States on December 17, 2025