Hooker BlackHeart Transmission Crossmember

1982-04 GM S-10/Sonoma 2WD LS Swap, 700R4 / TH350 / Powerglide Transmission Crossmember

PART# 71222018HKR

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Hooker continues to set the standard of performance with the Blackheart line of engine swap system components. We are proud to offer these three engine swap transmission crossmembers for 1982-2004 GM S10/Sonoma 2WD trucks. Each are designed specifically for use with Hooker Blackheart engine mounting brackets to simplify your LS swap. 71222018HKR Crossmember: Facilitates installation of a GM 700R4, TH350, and Powerglide transmissions 71222019HKR Crossmember: Facilitates installation of a GM T56, 4L60E, 4L70E, 4L75E, TH400 Transmissions 71222020HKR Crossmember: Facilitates installation of a GM 4L80E Transmission


  • Designed for use with all Hooker Blackheart S10 LS swap parts
  • Bolt in Crossmember for use with Hooker Blackheart S10 LS swap mounts 71221029HKR
  • 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 suitableU-joint working angles, when installed with Hooker 71221029HKR engine mounts
  • Designed in conjunction with other Hooker Blackheart S10 engine swap parts to provide bolt-in installation of Hooker LS swap manifolds, headers and exhaust systems for this application
  • Provides the highest clearance available for up to 3" exhaust system routing


Application82-04 GM S10/Sonoma 2WD LS Swap
BrandHooker BlackHeart
Emission Code5
FinishBlack Powdercoated
Product TypeCrossmember
Transmission Type700R4, TH350, Powerglide
Part Number71222018HKR



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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