Hooker Blackheart Transmission Crossmember - Bolt-On - Steel - Black Powder Coat - GM LS-Series - 4L60E/6L80/700R4/TH400 RU002003M Taking the basics of what

Taking the basics of what the GF545 was and combining it with our focus on quality and comfort

113 Lobe Separation

Steel clips have built-in 1/4"-20 threads making them ideal for often removed panels or when the backside is not easily accessible

Mercury C4

Hooker Blackheart Transmission Crossmember - Bolt-On - Steel - Black Powder Coat - GM LS-Series - 4L60E/6L80/700R4/TH400 RU002003M Taking the basics of whatDesigned using CAD (computer aided design) modeling FEA (finite element analysis) analysis for optimal fitment, strength, weight, safety and appearance Welded steel construction for superior strength Provides an optimum engine transmission inclination angle that is critical to obtaining suitable U joint working angles, when installed with Hooker BHS511 engine mounts Designed in conjunction with Hooker BlackHeart C10 engine swap parts to provide bolt