Wheel cylinders...........
I've just bought some of the 4-screw ones for the Barndoor (as they are the same). I bought a few extra for stock too
I can supply them for £100.00 each (inc VAT and with a pre '67 discount!). Original ATE ones.
ATE also do list a rubber re-build kit for them (and for other cylinders too), but whenever I try to buy them, they never seem to have them (I think their ploy is to sell more cylinders???).
I am also 99% sure front and rear are the same (I could be wrong).
As was previously mentioned, you can fit Oval era ones with the two screws as these line up perfectly - I did this with the split bug because I couldn't find the 4-screw ones (I've changed them since :shock: ).
Anyways, hope this helps!
Is frequently found with a glass of wine in one hand and a vintage vw part in the other