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Description
1970-1974 2nd-gen F-body LS Swap Transmission Crossmember 12616HKR-1Revised Design specifically for T56 (GM 4th gen F body GTO versions only), T56 Magnum, 4L80E 4L85E, TH400 and 200R4 transmission installations. The revised design is easier to install since the feet are removable and can be installed separately. Features: Provides for direct installation of a T56 (GM F Body GTO LS versions only) or T56 Magnum transmission Provides for installation of a 4L80E, 4L85E, TH400 or 2004R transmission with the combined use of
Revised Design specifically for T56 (GM 4th-gen F-body/GTO versions only), T56 Magnum, 4L80E/4L85E, TH400 and 200R4 transmission installations. The revised design is easier to install since the feet are removable and can be installed separately.
Features:
- Provides for direct installation of a T56 (GM F-Body/GTO LS versions only) or T56 Magnum transmission
- Provides for installation of a 4L80E, 4L85E, TH400 or 2004R transmission with the combined use of a Hooker Blackheart 71223013HKR adapter or 12650HKR spacer block
- Designed specifically for use with Hooker Blackheart 12512HKR and 12613HKR engine mounting brackets
- CAD modeled design optimizes fitment and strength while minimizing weight
- Built with powder coated steel construction for attractive, long-lasting durability
- Designed to provide optimized U-joint working angles and exhaust system ground clearance
- Bolt-in compatible with all Hooker Blackheart headers, exhaust manifolds and exhaust systems available for this vehicle application
- Designed for use with 71223029HKR (black) or 71223030HKR (red) transmission mount
- Revised Design for easier installation with removable feet
Specs:
| Application | 1970-1981 GM F-Body |
|---|---|
| Brand | Hooker BlackHeart |
| Color | Black |
| Emission Code | 6 |
| Engine | GM Gen III/IV (LS) |
| Exhaust Series | Hooker BlackHeart |
| Finish | Black Powdercoated |
| Material | Steel |
| Motor Type | GM LS |
| Product Type | Transmission Crossmember |
| Subframe | Stock |
| Transmission | 200R4 |
| Transmission | 4L80E |
| Transmission | 4L85E |
| Transmission | T56 GM |
| Transmission | T56 Magnum GM |
| Transmission | TH400 |
| Transmission Type | T56 (GM F-Body/GTO LS versions only) or T56 Magnum |
| Type of Component | Crossmember |
Applications:
- Fits:
- 1970-1971 Chevrolet Camaro
- 1970-1974 Pontiac Firebird
- Engine: LS Swap
Fitment Notes:
- This crossmember is designed as an Integral component of the complete Hooker Blackheart LS swap system for this vehicle application. Its unique design geometry is designed for compatibility with Hooker Blackheart 12512HKR and 12613HKR engine mounting brackets only.
- Due to design variances in the crossmember mounting hole locations on GM 2nd-gen F-body subframes, the mounting holes in this crossmember may not line-up directly with the mounting holes in your subframe. In such cases, the crossmember will need to be mounted using angle brackets included with this crossmember (requires drilling new holes in the subframe).
- Direct installation of a T56 (GM F-Body/GTO LS versions only) or T56 Magnum transmission.
- 4L80E or 4L85E Transmissions REQUIRE Part Number 71223013HKR
- TH400 or 2004R Transmissions REQUIRE Part Number 12650HKR
- Note: this crossmember is not compatible with Tremec TR6060 transmissions
- Designed for use with 71223029HKR (black) or 71223030HKR (red) transmission mount
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.0 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Now I want to hike the PCH!
Format: Paperback
Such an incredible story, actually several stories. Very inspirational. I can’t help but want to join the adventure and experience some trail magic of my own. Thank you for capturing these experiences, Scout. Well done
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Reviewed in the United States on November 25, 2025
★★★★★ 5
A community 3 feet wide and 2650 miles long
Format: Paperback
One of the aspects of long-distance backpacking on our National Scenic Trails that those who haven't done so are generally unaware of is the tight-knit sense of community that binds hikers together, even hikers who've never met. These folks are average people with a vast range of life experiences and circumstances, and not simply a generic array of "professional hikers" involved in some sort of athletic competition. In the "real world," you can know someone for years without *really* knowing them at all, but on the trail, a single day can feel like weeks, and months can feel like years. You can bump into someone in the morning, and have a new "old friend," soulmate, or savior by the end of the day.
In "Journeys North," Scout brings this community to life on the page vividly and emotionally, drawing us into not just his own life and experience, but of many others in his trail family- all making that journey north in a literal way collectively, as well as in their own personal ways figuratively. Along the way, he relates the highs and the lows of not just life on the trail, but of life in the "real world" as well. It's a crash course in empathy, determination, and sometimes just plain stubbornness.
When I received the book and flipped through it quickly, I was at first surprised at the lack of photos- just a single page at the end with a handful of shots of the "main characters." But as I read the book, I quickly realized that Scout's richly descriptive prose paints a far better picture than any actual pictures could, and was grateful for the space he made for my imagination to play a part in his story.
While no book could ever substitute for the actual experience of hiking a long trail, "Journeys North" serves as great inspiration for those who aspire to, as well as reassurance for their friends and family that they won't simply be disappearing into the wilderness alone.
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Reviewed in the United States on August 1, 2020
★★★★★ 5
Basics for the Hike
Format: Paperback, Format: Paperback
This is a nice, short book that gives you the basics of hiking the Camino de Santiago.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
If you are thinking of the Camino, This book is for you!
Format: Kindle
I just had a friend who walked 32 days on the Camino, and I chose this book to learn more about what it would be like. This was an excellent choice. The author outlines what pilgrims can expect and how to prepare for the experience. I had not realized there are six paths: The French, Northern, English, Portuguese, Orrigonal, and Silver Ways. It turned out that my friend was on the Portuguese way. The different paths range from three hundred to a thousand kilometers. The author goes through each of the "ways" and does a daily highlight of the number of kilometers one walks and the sights to expect. This book whetted my appetite to consider a walk like this; it would be a great resource for any pilgrim.
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Reviewed in the United States on October 22, 2024
★★★★★ 4
Basics for a successful pilgrimage
Format: Paperback
Brief but useful info
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Reviewed in the United States on January 26, 2026