No firewall mods needed, until I swapped to a scatter shield from a stock bellhousing, then I had to flatten the pinch weld for clearance. The transmission is from a 71 challeneger with the front shifter mount pad ground off for clearance at the t-bar crossmemberThe E body shifter and linkage and shifter required an E body 4-speed hump. The clutch is a 10.5 inch Centerforce Dual Friction.
