Replacing Your 7.3 Front Main Seal the Right Way

If you've noticed a fresh puddle of oil on your driveway, there's a solid chance your 7.3 front main seal has finally decided to give up the ghost. It's one of those repairs that every high-mileage Powerstroke owner eventually has to face. While these engines are famous for lasting forever, the rubber seals and gaskets definitely have an expiration date. When that front seal goes, it doesn't just drip; it tends to fling oil all over the front of the block, the cooling fan, and eventually your entire undercarriage. ...

February 27, 2026 · 7 min · Ronise Borson