These new portal axles include all metal gears, ball bearings, and a new larger pocket for a heavier-duty inner input bearing. With almost an inch more clearance than our standard straight axles, these axles are a perfect fit for any comp or trail rig.Features:Compatible with both chassis-mounted servo and axle-mounted servo setupsAdjustable casterAdjustable rear toeSteel pivot ballsUniversal drive axlesAluminum steering platesMetal gears throughout24 metal ball bearings