The OEM rear axle bolts (half-shaft) have shown a propensity for breakage under any thing other than normal street use. The incredible torque and large tire contact area of the GT, absolutely requires the finest driveline components. In this regard, we developed special, high performance rear axle bolts manufactured to stringent specifications. They are easy to install and inexpensive insurance against what could result as a catastrophic failure. Custom designed by ARP for Accufab Racing.