In the later MK2 Golfs the spline size was changed and different steering wheels were fitted. Rather than change the steering column a small adapter was fitted. This guide shows you how to remove the adaptor.
This guide explains the location of the bolts holding on your mk2 golf bumper. The small bumper and big bumper both share the same bolt holes, with the big bumper having larger location clips on the wings.
Many MK2 Golfs come with multiple keys these days, one for the boot; one for the doors and maybe a diffrent one for the ignition barrel. This guide shows you how to remove the old barrel and install a new one. Keep those keys matching!