Front Axle Hub Bolt Replacement - aka Wheel Studs

[navylife59]

The axle hub bolts, aka lug bolts, on the tC are known to be weak. Over tightening is the number one cause of failure where the bolt experiences stretching it twists off. While not so common, they have sheared off in hard racing and wrecks where it is predominately the front axle hub bolts that fail. It is highly recommended to replace all four sets of axle bolts with ARP quality studs, 12mm x 1.5mm pitch thread.

Note: It is highly recommended to set final lug nut torque with a torque wrench. Never use an impact or air ratchet for installing lug nuts.



REPLACEMENT
HINT:
• Use the same procedures for the RH side and LH side.
• The procedures listed below are for the LH side.
• A bolt without a torque specification is shown in the
standard bolt chart (see page SS-2).

1. REMOVE FRONT WHEEL
2. REMOVE FRONT DISC BRAKE CYLINDER ASSEMBLY
(a) Remove the 2 bolts and disconnect the disc brake
caliper assembly LH from the steering knuckle.



NOTICE:
• Use a string or equivalent to keep the brake
caliper from hanging down by the flexible
hose.
• The friction surface of the pad and disc must
be free from oil, grease and paint.

3. REMOVE FRONT DISC
4. REMOVE FRONT AXLE HUB BOLT
(a) Temporarily install the 2 hub nuts.
(b) Using SST and a hammer handle or an equivalent
to hold the axle hub LH, remove the LH hub bolt.
SST 09628-10011

INSTALLATION
5. INSTALL FRONT AXLE HUB BOLT
(a) Install a washer and nut to a new LH hub bolt as
shown in the illustration.
(b) Using a hammer handle or an equivalent to hold the
axle hub LH, install the LH hub bolt by tightening the nut.
6. INSTALL FRONT DISC
7. INSTALL FRONT DISC BRAKE CYLINDER ASSEMBLY
(a) Install the disc brake caliper with the 2 bolts to the
steering knuckle LH.
Torque: 107 N*m (1090 kgf*cm, 79 in.*lbf)
8. INSTALL FRONT WHEEL
Torque: 103 N*m (1050 kgf*cm, 76 ft.*lbf)