Aye SteveH,
Thank you for the info and the URL. Yes, sadly to big, 50mm is the ID. Pair going for £0-99 on Fleabay if anybody needs a pair.
Aye Andy230,
Thank you as well for the info and the URL to Graham's. I have taken the part number and will give them a ring in the morning to see what the craic is! As for mooching your spare part, nah! No bar, no bread, is your situation, this is still in the looky looky, see what's hiding stage!

As for the puller! I know where it is and not likely to forget, if I need it, I'll drop you a line and then maybe a public hint

on here and you know how eggy this lot can get.

Toodle pip and have a good season, if you can find the time and dosh.
Bill.