there all 5 stud mate, apart from ones that have been converted using xr4x4 stuff and capri rear axles. not many wheels do fit because they are transit wheels technically .

here are a few pics mate.
good link to the website too

http://forum.fordsierraclub.co.uk/vi...p?f=14&t=32105

wouldent sell it mate, ita a good workhorse. good luck with the search!
cheers mark.