'91 Sami rear brake cylinders - question

[Tramp]

Mines at the bottom too,

Ive just orders bits from Darrell's site...

http://brakeparts.co.uk/

[djc]

Mine look like that Tramp. Found brakeparts - brilliant, very helpful on phone and really quick service. But I got the wrong ones for the second time. I got 5166 and they fitted perfect. Bled for ages (about 2 litres through). Turned out they were too short so garage fitted the right ones (I had given up by then). It may be that 5487 is the right one but it would need to be longer between piston surfaces.
It seems very easy to get the wrong cylinders so take great care choosing which ones.
Meanwhile, I have 2 new sets, free to good homes. I'll put a thing in for sale.