Hooker BlackHeart Crossmember Adapter Bracket

4L60-4L70 Crossmember Adapter Bracket

PART# 71223003HKR

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Optional Hooker BlackHeart Transmission adapter brackets are designed to accomodate installation of various GM/Tremec Transmissions using Hooker Blackheart transmission crossmembers for specific vehicles.


  • CAD designed for direct compatibility with various Hooker BlackHeart transmission crossmembers
  • Provides for installation of 4L60-4L70 transmission when used with compatible Hooker BlackHeart transmission crossmembers
  • Attractive Semi-gloss black powder coat finish
  • Bolt-on installation


BrandHooker BlackHeart
Motor TypeGM F-body
Product TypeCrossmembers
Part Number71223003HKR
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        Some parts are not legal for use in California or other states with similar regulations.