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- USA
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Fits 1967-1969 GM F-Body LS/LT Swap Transmission Crossmember 12627HKRLS LT swap 4L80 4L85 automatic transmission crossmember Features: Facilitates installation of a 4L80 4L85 GM automatic transmission behind an LS engine in any year 1st gen F body or 3rd gen X body Designed using CAD modeling FEA analysis for optimal fitment, strength, weight, safety and appearance High strength low alloy steel construction Provides an engineered 3 to 3. 5 degree engine transmission inclination angle that is critical to obtaining
LS/LT swap 4L80/4L85 automatic transmission crossmember
Features:
- Facilitates installation of a 4L80/4L85 GM automatic transmission behind an LS engine in any year 1st-gen F-body or 3rd-gen X-body
- Designed using CAD modeling/FEA analysis for optimal fitment, strength, weight, safety and appearance
- High-strength low-alloy steel construction
- Provides an engineered 3 to 3.5 degree engine/transmission inclination angle that is critical to obtaining suitable U-joint working angles, when installed with Hooker 1st-gen F-Body & X-body LS engine swap brackets
- Designed in conjunction with Hooker 1st-gen F-body & X-body LS/LT engine swap brackets to provide bolt-in installation of Hooker LS swap headers and exhaust systems for this application
- Installation requires use of transmission mount 71223029HKR (black) or 71223030HKR (red)
- Provides the highest clearance available for up to 3" exhaust system routing
Specs:
| Application | 67-69 F-Body/ 68-74 X-Body |
|---|---|
| Brand | Hooker BlackHeart |
| Emission Code | 5 |
| Engine | GM Gen III/IV/IV (LS/LT) |
| Finish | Black Powdercoated |
| Material | Steel |
| Motor Type | GM LS/LT |
| Product Type | Transmission Crossmember |
| Sale Category | Engine Swap Parts |
| Subframe | Stock |
| Transmission | 4L80E |
| Transmission | 4L85E |
| Transmission Type | 4L80/4L85 |
| Type of Component | Transmission Crossmember |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1973-1974 | Buick | Apollo | Base |
| 1969-1974 | Chevrolet | Nova | Base |
| 1973-1974 | Chevrolet | Nova | Custom |
| 1973-1974 | Oldsmobile | Omega | Base |
| 1971-1974 | Pontiac | Ventura | Base |
| 1973-1974 | Pontiac | Ventura | Custom |
| 1974 | Pontiac | Ventura | GTO |
| 1968-1971 | Pontiac | Acadian | Base |
| 1967-1969 | Chevrolet | Camaro | Base |
| 1967-1969 | Chevrolet | Camaro | RS |
| 1967-1969 | Chevrolet | Camaro | SS |
| 1967-1969 | Chevrolet | Camaro | Z28 |
| 1968-1969 | Pontiac | Firebird | 350 |
| 1969 | Pontiac | Firebird | 350 HO |
| 1967-1969 | Pontiac | Firebird | 400 |
| 1967-1969 | Pontiac | Firebird | Base |
| 1967-1969 | Pontiac | Firebird | Sprint |
| 1969 | Pontiac | Firebird | Trans Am |
| 1968 | Chevrolet | Chevy II | Nova |
| 1967 | Pontiac | Firebird | HO |
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
4.5 ★★★★★
Based on 141 reviews
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Product Reviews
★★★★★ 5
My favorite
Size: Medium, Color: Opal Blue/White/Cruise Blue (3-pairs)
My favorite socks, too bad under armour discontinued the cotton blend fabric and went to 100% polyester 😠
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
★★★★★ 5
Comfortable
Size: 6-10, Color: Halo Gray/Assorted
These are my favorite socks!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 22, 2025
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026