I noticed a light grinding sound coming from the driver side rear tire and after further diagnosis I determined it to be the axle bearing on my Dana 35. I now have all the replacement parts to perform this repair and upon disassembly I discovered that someone had used RTV silicone on the axle seals. Is this common or should I expect something bad? I also broke my bearing puller when trying to unseat the seals; if you look closely you can see the foot inside the tube.