Identifying brake calipers Cooper or Cooper S?

[rolesyboy]

Hi. I have aquired a couple of sets of brake calipers, hubs, shafts etc which are either Cooper 7" or Cooper S 7.5". Can anybody tell me what part numbers I need to look for and where they can be found please? (Before you say it I don't have any 7 or 7.5 discs to measure- only hubs shafts calipers and drive flanges)

Cheers. Mark

[ivor badger]

For calipers, check the pad shape. For discs, check the design of the driving flange and CV spline size, even the hub nut size should do.

[rolesyboy]

Sorry but I have nothing to compare them to for pad size etc. Anybody know where I will find the part numbers? I have found some on the caliper body but cannot seem to cross reference them. They are as follows:
3242813
BA21240
3242816 (or could be a 0)

Sorry but these are my best guesses as the numbers are ever so small and under 40 years of crap so bit difficulty to read. Cheers guys.

[1071bob]

'S' calipers have 1.75" diameter pistons, the Cooper ones are smaller.........1.5" dia I think.

[JC T ONE]

Very easy, shaft / splines / nut on Cooper, is the same size as std Mini, and S is MUCH bigger.