1970-1981 Chevrolet Hooker Blackheart Transmission Crossmember, LS Swap, T56-4L80E-4L85E-TH400-200R4 12616HKR

Designed specifically for T56 (GM 4th-gen F-body/GTO versions only), T56 Magnum, 4L80E/4L85E, TH400 and 2004R transmission installationsFeatures:Provides for direct installation of a T56 (GM F-Body/GTO LS versions only) or T56 Magnum transmissionProvides for installation of a 4L80E, 4L85E, TH400 or 2004R transmission with the combined use of a Hooker Blackheart 71221013HKR adapter or 12650HKR spacer blockDesigned specifically for use with Hooker Blackheart 12512HKR and 12613HKR engine mounting bracketsCAD modeled design optimizes fitment and strength while minimizing weightBuilt with powdercoated steel construction for attractive, long-lasting durabilityDesigned to provide optimized U-joint working angles and exhaust system ground clearanceBolt-in compatible with all Hooker Blackheart headers, exhaust manifolds and exhaust systems available for this vehicle applicationDesigned for use with Prothane 7-1604 (poly) or Anchor Industries 2268 (rubber) transmission mounts

Manufacturer Part Number : 12616HKR

Part Notes:

This crossmember is designed as an Integral component of the complete Hooker Blackheart LS swap system for this vehicle application. Its unique design geometry is designed for compatibility with Hooker Blackheart 12512HKR and 12613HKR engine mounting brackets only. Due to design variances in the crossmember mounting hole locations on GM 2nd-gen F-body subframes, the mounting holes in this crossmember may not line-up directly with the mounting holes in your subframe. In such cases, the crossmember will need to be mounted using angle brackets included with this crossmember (requires drilling new holes in the subframe). 4L80E/4L85E transmission installations require the use of a Hooker Blackheart 71223013HKR adapter bracket; TH400 or 2004R installations require the use of a Hooker Blackheart 12650HKR spacer kit. This crossmember is not compatible with Tremec TR6060 transmissions.