Brake Disc Data from Haynes Rover 3500 S Manual (GIRLING)

	3500 S	2000
Brake Disc Diameter, Front	10.82 in.	10.312 in
Brake Disc Diameter, Rear	10.690 in	10.690 in
Disc thickness, front (new)	0.505 in	0.505 in
Disc thickness, rear (new)	0.380 in	0.380 in

Minimum thickness after refacing, front	0.450 in	0.450 in
Minimum thickness after refacing, rear	0.330 in	0.330 in