Fast Guppy’s Speed Shop

HOOKER BLACKHEART TRANSMISSION CROSSMEMBER ADAPTER BRACKET #12645HKR

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  • $88.60
  • Regular price $98.44
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1973-87 GM C-10/20 2WD LS swap adapter bracket. This bracket is required to be used with 12646HKR for installation of a TH350, 700R4, T56 or T56 Magnum transmission.

Features:

  • Facilitates installation of a TH350, 700R4, T56 or T56 Magnum transmission behind an LS engine in 1973-87 GM C-10/20 2WD applications (requires 12646HKR crossmember)
  • Designed using CAD modeling/FEA analysis for optimal fitment, strength, weight, safety and appearance
  • Welded steel construction
  • Provides an optimum engine/transmission inclination angle that is critical to obtaining suitable U-joint working angles, when installed with Hooker 12621HKR engine mounts
  • Designed in conjunction with other Hooker GM C-10/20 engine swap brackets to provide bolt-in installation of Hooker LS swap manifolds, headers and exhaust systems for this application

Specs:

Brand Hooker BlackHeart
Emission Code 5
Product Type Crossmember
Part Number 12645HKR