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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
4.7 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 4
Excellent quatity cheap.
Color: Silver
Pervect fit. Heavy duty.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
★★★★★ 3
Very tight fit on 74mm Mobile 1 Filters
Color: Silver
It claims to fit "some" 74mm Mobil 1 filters. It's a fraction too small, but will work if you "force" the tool on the filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
★★★★★ 5
It’s Mobile One. The Brand Says it All!
Size: 5 Quart (Pack of 2), Style: Full Synthetic, Configuration: 0W-40
I buy Mobil One 0W-40 Full Synthetic European Blend Motor oil for my three older, higher mileage Mercedes SUVs. Considering all the vehicles are running well to this day speaks to the quality of their ongoing maintenance and Mobil One lubricants have always been part of their routine. Mobil One long ago became the favored brand of both European luxury car manufacturers and their customers. I’m no exception. The product comes in a convenient handled bottle that’s easy to pour without drips or spills. It’s built in fluid level gauge provides you with a real time window into the quantity of oil you pour and quantity remaining in its container.
The oil is an excellent lubricant and it’s great for my motor, too.
Price wise, it’s a premium offering from a premium brand. Even so, it’s worth every penny for helping keep my vehicles running as they were engineered.
I have no complaints with Mobile One and I don’t have a reason to change. I’ll keep buying it until something better comes along.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Perfect for MB
Size: 5 Quart (Pack of 2), Style: Full Synthetic, Configuration: 0W-40
Mercedes certified - this oil is very nice, no need to drop loads on oil from MB or the other pricier brands, this stuff works very well.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Great Product and price.
Size: 5 Quart, Style: Full Synthetic, Configuration: 0W-40
Great product and price.
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Reviewed in the United States on May 14, 2026