Hooker Blackheart 71222015HKR Transmission Crossmember

Compatible with 1982-1993 Mustang LS & Coyote Swap, Powerglide / TH350 / TKO Transmission Crossmember

PART# 71222015HKR

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Hooker continues to set the standard of performance with the Blackheart line of engine swap system components. Hooker is proud to offer these two engine swap transmission crossmembers for 1982-1993 Ford Mustangs, which provide an efficient way to install popular GM (LS swaps), Ford (Coyote swaps), or Tremec (LS and Coyote swaps) transmissions into these cars as part of an engine swap project.

Each are designed specifically for use with Hooker Blackheart engine mounting brackets/methods and provide high-clearance exhaust arches that directly accommodate the tube bend geometry of the Hooker Blackheart headers and exhaust systems developed for engine swaps in these cars.


  • Comprehensively designed as part of the Hooker Blackheart 1979-1993 Mustang LS and Coyote engine swap systems; bolt-in compatible with Hooker Blackheart LS/Coyote engine mounting brackets, headers and exhaust systems
  • CAD designed to optimize strength, stiffness and component/exhaust system clearances
  • Powder coated steel construction provides effective and attractive transmission support solution for many popular transmissions
  • Installation hardware included

Product Attributes

BrandHooker Blackheart
Emission Code5
Manufacturer Part Number71222015HKR
Product TypeTransmission Crossmembers
Part Number71222015HKR



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Intended for use only with the specific drivetrain positioning geometry provided by Hooker Blackheart LS and Coyote engine mounting brackets/methods. Will not work with engine mounting brackets that move the engine/transmission away from the stock factory offset, or the engine/transmission mating plane away from the stock SB Ford fore/aft position.

The 71222015HKR* and 71222016HKR crossmembers can be used alone, or in combination with multiple optional adapters, to install the following transmissions:

71222015HKR crossmember in LS swap applications-
Powerglide, TH350 and TKO transmissions- no adapter required

71222015HKR crossmember in Coyote swap applications-
Powerglide transmission with JW Performance bellhousing- no adapter required

71222016HKR crossmember in LS swap applications-
2004R or TH400 transmissions- 12650HKR adapter required
4L60-4L70 transmissions- 71223003HKR adapter required
4L80/4L85 transmissions- 71223013HKR adapter required
4th-gen F-body T56 or T56 Magnum transmissions- no adapter required

71222016HKR crossmember in Coyote swap applications-
Ford spec T56 Magnum transmission- no adapter required

*The 71222015HKR crossmember is not installable on 1979-81 Mustangs without modifications being performed to the factory transmission crossmember receiver brackets.


Product Reviews

    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.