The Level 5 axles for the 350Z/G35 feature a Porsche style 108mm outer CV, our larger 36 spline high-grade aircraft quality torsional center bars that twist significantly more than a factory unit, allowing them to absorb a great deal of the shock produced by high horsepower applications and will reuse your factory inner CV housing. These axles also feature our new bolt-on outer stub that fits the factory wheel hubs and include a chromoly inner CV race to convert your factory inner CV to fit our larger bars and boots, clamps and grease to install your inner housings.