Thanks for the heads up guys!
so when they say=
Our new rear disc kit breaks new ground. It is the only kit in the world that is designed to bolt directly to 68-80 Bay window bus hubs without modification and gives two PCD’s. Yes two bolt patterns giving you the chance to change wheels from your polished Porsche Fuchs in summer to those painted original steels in winter. Other PCD combinations are available to special order. Call for details.
The kit contains everything you need to convert from the drums on your Bay or your Splitty that has been IRS’d using Bay window hubs. This kit is a true bolt on. There in no welding or machining required. There are no core exchange items as every part of the kit is brand new.
The standard kit will retain the same track width as the original drums and will accept 15” alloy wheels. (You must make your own checks before ordering wide wheels, but we have experienced no problem with wheels as wide as 7.5” in width.)
With the optional spacer, you can fit 15” x 6” original steel wheels with tires up to 215 width without clearance problems..
I've to take that with a massive pinch of salt?
Liam