Hooker BlackHeart transmission crossmember is part of the most comprehensive line of GEN-3 Hemi swap components available for the Mopar A-Body. Crossmember BHS572 allows the installation of the popular A727 3-speed with easy bolt-in installation and also allows installation of the popular GM style Tremec TKX 5-speed manual transmission. Use Crossmember support BHS588 for the Tremec TKX (GM style) manual transmission. Each Transmission uses an application specific adapter plate that is sold separately from the BHS572 crossmember. No cutting or drilling is necessary to install the crossmember just bolt it in the factory location using the supplied hardware. The modular design allows the use of several different transmission options without the need to buy or fabricate a different Crossmember - simply change to a different adapter plate and the driveline and u-joint alignment have been preset to the corresponding transmission. These Crossmembers are designed to use a popular and inexpensive GM style transmission mount for its compact design that allows for better ground clearance than the factory crossmember (Hooker part number 71223029HKR or 71223030HKR - sold separately). Solid 3/16" steel construction and black coated finish provides long lasting performance and good looks.