4-speed hump install
cut the floor out a little at a time,,install the tranny,and cut floor to fit,,making sure shifter and linkage have clearance,.
when you locate the hump for positioning,make sure you can get to the shifter mounting bolts,the top one wil be the hard one,at least it is in an early BARRACUDA,from under the car. ,position it properly,and add material to the new hump to close up any gaps,,