Front one-way set including hardcoated and lightweight adapters. Front one-way machined from Swiss 7075 T6, hardcoated for long life. Includes factory-pressed high-quality German one-way bearings, hand-ground for maximum running precision and strength. The one-way bearings must be serviced, cleaned, and oiled regularly (we recommend using DY106231 HUDY One-way Lube). One-way bearings are not replaceable. Set includes also lightweight CNC-machined diff outdrive adapters made from tough HUDY Spring Steel™. The shafts are precision ground and polished for smooth operation, and have been strategically machined to be 25% lighter than the standard XR345070 diff outdrive adapters.