The Revolution Gear & Axle master install kit for 1998–2004 GM 10.5‑inch 14‑bolt rear axles references Koyo bearing compatibility in its description and is intended as a ring‑and‑pinion installation kit for 10.5in 14‑bolt GM rear ends. It’s selected for use when replacing or installing ring and pinion assemblies on compatible GM heavy‑duty rear axles; confirm axle size and bolt pattern to ensure correct kit choice.
Revolution Gear & Axle 98-04 GM 10.5in 14-Bolt Rear Koyo Bearing Ring & Pinion Master Install Kit