4 speed tunnel

It’s not just the hole for the shifter that’s important. If you want or need to get the shifter in or out while it is all assembled.The tunnel needs to be installed in the correct location. If it is shifted to far towards the passenger side even slightly there won’t be enough clearance. If you are saying the original tunnel remains welded to the floor then yes just locate the shifter hole. Good luck..Swingn’