Have a 2001 Ranger 4-door XLT ext cab, 3.0 V6, AT, 2WD, 118,000 miles...
All of a sudden I'm noticing diff oil drops in the driveway. I changed the fluid out this past summer, all was holding just fine at that time. Of course I removed the diff cover to do the fluid change.
But it appears that the front seal on the diff is now leaking, the pinion seal. I have the Ford factory Service Manual. It looks like its a reasonably easy job, recod torque to rotate axle w/ drums off. Take the pinion nut off, remove the pinion flange (w/ a puller), pry out the seal, replace, reverse installation, etc.
Looks like an easy afternoon job. the only hangup I see is the drive pinion installer tool. Looks like to install the pinion this will thread in the pinion gear shaft. And as I tighten it down it pulls the pinion flange onto the shaft. Is this tool absolutely necessary? Wouldn't just tightening the pinion nut pull it on?
In an OLD THREAD I read, here is the procedure. Someone took it right from the service manual.