Features: Great Compatibility: Specially designed for 1993-1997 Aerostar or 1993-2006 Ranger and Explorer with 4.0L V6 engine. Direct Replacement: Replace OTC 7834 Rear Crankshaft Seal Installer for Ford. Similar to Ford No. 303-5524. Upgrade Design: Works on crankshaft rear oil seals that come with or without a metal wear sleeve. Perfectly install the sleeved seal, prevent damage to the seal and leakage. High Quality: Premium grade CNC machined heavy duty steel with black anodized, durability, anti-corrosion and anti-rust. High precision and hardness to provide a much longer service life. .