Welcome to TM Iain. You'd be better posting this in the relevant section - either for Pre-CX cars, or in the Repair/Servicing section. As for drum brakes no longer available - someone has given you total wrong info there
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly '11 MINI Countryman Cooper D All4 '90 LR 90 SW