Impreza WRX STI F4-2.5L Turbo (2008)
INSTALLATION
1) Install in the reverse order of removal.
Tightening torque:
Brake hose bracket 33 Nm (3.4 kgf-m, 24.3 ft. lbs.)
Caliper body 65 Nm (6.6 kgf-m, 47.9 ft. lbs.)
2) Adjust the parking brake.
INSPECTION
1) Check the rear wheel bearing play and axle hub runout before inspecting the disc rotor runout.
2) Secure the disc rotor by tightening the five wheel nuts.
3) Set a dial gauge 10 mm (0.39 inch) inward from the disc rotor outer circumference. Rotate the disc rotor to check runout. If the runout of disc rotor
exceeds the service limit, grind the disc rotor. After grinding, check the thickness of the disc rotor according to the procedure in step 4).
Disc rotor runout limit: 0.07 mm (0.0028 inch)
4) Set a micrometer 10 mm (0.39 inch) inward from the disc rotor outer perimeter, and then measure the disc rotor thickness. If the thickness of the
disc rotor exceeds the service limit, replace with a new disc rotor.