[tlukasavige172]

Here's the story. I had the lugs loosen up on my rear drivers side dually and then ended up ruining my studs. I had a mobile mechanic come out (I was on the side of the road) and he put in new studs. He didn't have the seal that goes on the inside of the axle so the old was reused. After driving it 100 miles home I saw it was leaking between the hub and the brake disc. I took it all apart and installed a new seal. I drove it 8 miles and found oil coming out between the hub and brake disc still!!

So what did I do wrong? Did I screw up the seal somehow when I slipped everything back onto the axle? I'm suppose to drive it 200 miles tomorrow but I'm afraid that I won't have any oil left in there to lubricate the bearings and then I'll really be in trouble. Send some advice my way.

EDIT: I am sitting here trying to think about this and think about it logically. When I put the new seal in I did not split the brake disc from the hub. I turned the hub onto the ground so the brake disc was in the air. I then took the new seal and pressed it into the hub using a board and mallet. I pounded it in until the board and top of the seal were flush with the disc. Could it be that the seal needs to be driven in further? Do I need to split the 2 apart to get the seal in far enough? It seemed I could do it this way but obviously I don't know what I'm talking about cause it's still leaking....

 

[MichaelJT]

What I know: I've seen the old "board and mallet" method of driving seals in done many times, and it worked. That's old school and what you use when you don't have the specific tools. But they make seal drivers to do it right, and you may not have driven it in far enough, or had it ed slightly as it went in. It's a pretty good bet that it didn't go in square and straight. I've had mechanics not do it right, even using the correct tools and caused a big mess. I don't think in 200 miles you are going to do any damage with the little bit of seepage seen in your photo. Drive it 50 miles and take a look. Carry along a couple quart bottles of gear lube for insurance.