There's was no magnet and there was some metal chunks in there. I got the this axle and the front to match for the 3.73s out of an 87 K5 the was wrecked. I need lower gears then my 3.08s with 33in tires. As far as I can tell the last guy tore it up and had it rebuilt but as I've seen some do the guy thought the spider gears where to tight and left out the thrust washers to get them in. Ive got the diff rebuilt now I'm just cleaning in all up before I put the all back together.