This is from the Service Manual.
Also covers non FiST
General Specifications
Item Specification
Front brake disc minimum thickness 0.827 in ( 21 mm)
Rear brake disc minimum thickness 0.354 in ( 9 mm)
Brake drum maximum diameter 8.661 in ( 220 mm)
Brake pad minimum thickness 0.059 in ( 1.5 mm)
Brake shoe minimum thickness 0.039 in ( 1 mm)
Brake lining maximum taper wear (in any direction) 0.059 in ( 1.5 mm)
Dave