Install a modern transmission into your ’71–’73 Mustang with one of our two industry-leading transmission crossmember kits. At their core is Stifflers’ unique single-tube crossmember, engineered for exceptional strength, adjustability, and clean looks without unnecessary weight. The system includes adjustable, bolt-on mounting brackets that allow precise crossmember placement with no vehicle modifications required, while optimizing pinion angle and maximizing exhaust clearance for a proper, hassle-free installation.
JUST RELEASED! Two New 1971-1973 Mustang Transmission Crossmember Kits
Posted by Stifflers Admin on Jan 22nd 2026
