Silly question but for a 1991 4/4 will I need an imperial set ?
A 1991 4/4 is likely to have a Ford CVH engine and box, which is (to the best of my knowledge) likely to be metric. The axle would be a Salisbury , so I am not sure about that, but likely to be A/F.
The chassis and running gear is likely to a mixture of whatever MMC had to hand at the time. Most fastenings should have been metric by that age, but there are likely to be odd ones which will be a/f or imperial.
If you buy a comprehensive metric set, get a small set of a/f sockets which you can use with the drives from the set, and if you want more coverage buy a set of a/f spanners.
Others know this era of the 4/4 better than I , so they will no doubt chip in also.
