For the 1970-1974 F-Body frames the distance between the crossmember frame mounting holes is 30-1/2"
This is going to include the adapter at the fuel module/fittings/line needed to complete the job
Its custom built to our spec and physically as large of a core that we could fit behind the bumper
"name": "1984-1995 Mustang Mounts & Adapter | Third Generation"
you would need to upgrade your spring
1969-1970 B-Body Crossmember exhaust-modules For the 1970-1974 F-Body framesFits Models: Bel Air, Caprice, Impala, Biscayne, Le Sabre, Catalina, Bonneville, Delta 88, Starfire, Delmont, Grand Prix, Wildcat, Executive, Dynamic 88, Jetstar 88, Kingswood Fits Years: 69 70 Fits Transmissions: 6L80E Slip Yoke, 6L90E Slip Yoke Note: If your car was OEM equipped with a TH400 or has two sets of trans crossmember mounting brackets on each frame rail, then this crossmember will also accommodate your TH400 or 2004R transmission. For a