Features: 1. Great Compatibility — Fit for 1993-1997 Aerostar or 1993-2006 Ranger and Explorer with 4.0L V6 engine. 2. 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 3. Easier Work — Similar to No. 303-5524. Replace OTC 7834 and work in a easier way to save your time and money. 4. Superior 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. .