SKU: 22338116149

1970-1974 2nd-gen F-body LS Swap Transmission Crossmember 12616HKR-1

Sale price$153.42 Regular price$170.47
Save 10%

Pay in installments of $42.62 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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.
  • Delivery to the USA:
  1. 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
SKU: 22338116149

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 6 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kristina
Fort Morgan, US
★★★★★ 4
Great value
Size: 18-26 Expedition, 15-26 F-150, 18-26 Navigator
The engine air filter fit perfect. The cabin air filter was a bit of a challenge fitting. seemed to be a bit larger but it went in and got the cap back on the box. For the price you cant beat it. Would buy again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
S
Verified Purchase
Storyteller
Bozeman, US
★★★★★ 5
Great Filter Set for Allergy‑Sensitive Families and MPG‑Minded Drivers
Size: 21-25 TLX, 18-25 Odyssey
I bought this set because I prefer handling routine maintenance myself, especially cabin and engine air filters, rather than paying dealership prices for simple jobs. The package included one cabin air filter and one engine air filter, plus a full backup set for the next service interval. Both filters installed easily and fit the 2018 Honda Odyssey exactly as expected. No trimming, no forcing, and no alignment issues. The cabin filter seated cleanly in the glove‑box housing, and the engine filter dropped into the airbox without any airflow restriction or sealing gaps. This setup is ideal for Odyssey owners who want to maintain optimal cabin air quality—especially helpful for families with allergies—and for drivers looking to keep engine airflow unrestricted for the best possible MPG and throttle response. It may not be necessary for anyone who relies exclusively on dealership service or doesn’t perform their own maintenance. Overall, this is a straightforward, high‑value filter set that installs cleanly and supports both air quality and engine efficiency for DIY‑minded Odyssey owners.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
T
Verified Purchase
Tom Crum
Massapequa, US
★★★★★ 5
Auto air filters
Size: 16-22 Pilot, 14-16 MDX
Perfect - product great - installation easy and much cheaper than having dealer or auto shop do it ——
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
S
Verified Purchase
SheilGenX
Draper, US
★★★★★ 5
DIY auto repair.
For the DIY small auto repair repairs. I did it myself. Great value. Cleaned up the airflow.. the quality is there with this filter. Time to buy a new one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 18, 2025
M
Verified Purchase
MAB
Charlottesville, US
★★★★★ 5
Perfect fit
Hey - pay attention to the one you pull out. All the corners are different like a puzzle piece. It takes longer to open the intake than to place the filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2025

recommand products