I bought these for the Stock 72 model I had they fit on no worries but the rear offset does sit a little bit to wide for the early model TA22's (The guard lip is smaller) I don't have a 74 model onwards I can test fit them too.
I drove around with them on no problem unless I had 3 people in the car. Then in scrubbed a bit on the bumps.
The tread is all good in fact the front look almost new, the rears would be past half way tho. All the tyres are retreads.
Good news re the diff, Can't wait to see the pics.