Hooker Blackheart 71222017HKR Transmission Crossmember

1967-69 Camaro (DSE) LT SWAP Transmission Crossmember T56 Magnum

PART# 71222017HKR

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This crossmember is designed as part of a fully-engineered fifth generation LT Engine swap mounting system for GM 1st-gen Camaro using Detroit Speed and Engineering front Subframe and suspension components. It has been CAD designed and FEA validated to provide excellent structural strength and stiffness from its high-strength low-alloy steel construction. As a further benefit to the user, a maximized ground clearance pathway for routing up to 3 in. exhaust system tubing is included as a main design feature.
The design geometry of this crossmember provides direct installation of a Tremec™ aftermarket T56 Magnum manual transmission into your vehicle


  • Engineered to provide the proper driveline inclination angle with the DSE (Detroit Speed, Inc.) subframe
  • Provides direct installation of a Tremecâ„¢ T56 Magnum manual transmission into your vehicle.
  • Notched to provide superior ground clearance for up to 3” exhaust
  • Designed to simplify fifth gen LT1 or LT4 engine swaps in 67-69 1st Gen Camaro using the DSE (Detroit Speed, Inc.) front Subframe
  • Uses GM OEM or popular aftermarket transmission mount
  • Easy installation with no fabrication necessary
  • Powder coated finish for lasting good looks
  • 100% quality hand-welded construction for strength, longevity and good looks
  • All hardware included
  • Manufacturer’s limited lifetime warranty

Product Attributes

BrandHooker Blackheart
Emission Code5
Product TypeTransmission Crossmembers
Part Number71222017HKR



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.

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