Hooker Blackheart 71223003HKR Crossmember Adapter Bracket

4L60-4L70 Crossmember Adapter Bracket

PART# 71223003HKR

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$34.28   Suggested Retail
$30.85   Your Price
Estimated shipping date: 12/08/2020
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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

Product Attributes

BrandHooker Blackheart
Emission Code5
Product TypeTransmission Adapters
Part Number71223003HKR



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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    *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.