Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
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
4.0 ★★★★★
Based on 2444 reviews
Sort
Product Reviews
★★★★★ 5
Good looking shelves and easy install - skip the included drywall anchors
Color: Black, Number Of Shelves: 2, Size: 22in
I installed these shelves in a bedroom to get things off my dresser and some decor. Once mounted they look really nice. The black finish looks clean and modern and they blend in well with the room.
Installation was pretty straightforward. The metal bracket mounts to the wall first and then the shelf slides over the bracket. As long as you take your time lining things up it’s a simple project.
One thing I strongly recommend is not using the white plastic self-drilling drywall anchors that come with the kit. I’ve used that style before on other projects and they tend to strip out easily and leave larger holes in drywall. I used better anchors instead and the shelves mounted much more securely.
The rest of the hardware worked fine and once installed the shelves feel solid and hold items well.
Pros
- Clean modern look
- Easy installation
- Feels solid once mounted
- Good size for books or decor
Cons
- The small level included isn’t very accurate — use your own level
- One of the metal brackets was slightly bent out of the box but straightened out easily
Helpful tip:
Use your own level and better drywall anchors if you have them. It makes installation easier and the shelves will mount much more securely.
Final thoughts:
For the price these are nice looking floating shelves that install easily and work well for light storage and decor.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
★★★★★ 5
Cheap, and effective!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Looks good, works great, low cost. I'll be purchasing more in the future.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
★★★★★ 4
Cute for coffee bar!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Great for above my coffee bar. Easy to mount and align. Seems stable!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 5
Great shelves, strong, secure, sturdy, decent size, unbeatable price.
Color: White, Number Of Shelves: 4, Size: 15.7in
Easy installation fits where we wanted them. Stable strong secure snug fit. Cleans easily with dust wipe. I would recommend buying these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
★★★★★ 3
The shelves sag away from the wall overtime
Color: White, Number Of Shelves: 2, Size: 15.7in, Color: White, Number Of Shelves: 2, Size: 15.7in
Although the wood quality and finish of the shelf are clean and well-made, the main issue is that the shelves begin to sag over time while holding around 10 pounds, even though the product listing claims they can support up to 20 pounds. They may perform better on a brick wall, but on drywall you should be cautious.
To fix the problem, I had to purchase floating shelf brackets for support, which solved the sagging issue. However, this defeats the purpose of the “floating” aesthetic. Since the shelf is in my bedroom, I can overlook it, but I personally wouldn’t install these in a common area if I wanted a clean floating look.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026