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Hooker BlackHeart Transmission Crossmember Adapter Bracket

1973-1987 GM C-10/C15 2WD, 1979-1987 C20 2WD & 1973-1982 Blazer/Jimmy 2WD LS Swap Adapter Bracket for TH350, 700R4, T56, T56 Magnum

PART# 12645HKR

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Use with 14646HKR Crossmember only.

Overview

1973-1987 GM C-10/C15 2WD, 1979-1987 C20 2WD & 1973-1982 Blazer/Jimmy 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

BrandHooker BlackHeart
Choose Your PartTransmission Mount
ColorBlack
Emission Code5
EngineGM Small Block Gen III/IV (LS Based)
FinishBlack Powdercoated
MaterialSteel
Product TypeTransmission Mount
Transmission700R4
Powerglide
T56 GM
T56 Magnum GM
TH350
Type of ComponentAdapter
Part Number12645HKR

Emissions

5

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

Integral component of the complete Hooker BlackHeart swap system for this application. Component features unique geometry that is not compatible for use with any other brand of engine mounting components. 12645HKR adapter bracket is required for installation of a TH350, 700R4, T56 or T56 Magnum transmission. Use with 14646HKR Crossmember only.

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