I don't know why you would be cutting the floor unless you go with a linkage set up I my self like the B&M shifters they install pretty painless all you need is to drill four holes for the shifter to mount and 3/4 1n hole for the cable It come with all the hardware to mount onto the trans I myself Like the quicksilver witch is a ratchet shifter they go for $225 they all so make mega shifter gose for the same price they are pretty easy to install