[95 S_Trucker]

Disc brakes came out in 98 for the blazer. 97 and earlier were drum.

98-05 2wd rear rotor: 296mm diameter, 20,mm thick, 72.8mm total height(so the hat would be 62.8mm tall)

98-05 4wd rear rotor: 295 mm diameter, 20mm thick, 95.3 mm total height(so the hat would be 75.3 mm tall)

From the measurements you gave, they are close, but not a direct fit for a blazer.




94-96 Impala SS rear rotor: 295mm diameter, 20mm thick, 59.1 total height(so the hat would be 39.1mm)

That's not a direct fit either