For about a year my '74 2.0 began developing a slop in the steering. I could turn the wheel 1/2 inch either way with no resistance or wheel movement on the ground. Typical of me thinking the worst, I was preparing to either replace the steering coupler or, since I have a whole new rack assembly with the coupler, to pull whole shebang and replace it all.
Luckily, before doing anything, I decided to take a peek at the steering shaft u-joints inside the cabin. Sure enough, the joint closest to the firewall was loose. A one minute tighten job of the 14mm bolt and suddenly I had perfectly tight steering again!
Moral of the story- NEVER ASSUME THE WORST before fully investigating a problem. Something I just never seem to learn.
Ansbacher