My mates mk1 has developed a bit of a fault with the gearknob, you can push it into the floor, it still changes gear but its a little awkward, we got underneath it to have a look and where the gearstick comes through the floor there is a c shaped metal bracket bolted to the floor, we spent ages messing about with it trying to fit it back into this but everything we tried didnt work and it kept on coming back off.
Does anyone have any ideas?