[Opie]

OK, so interesting follow up to this. Our group keeps a pretty large inventory of spare parts from parts cars we purchase. When I had a previous axle issue I just grabbed a "used" axle off the shelf and installed it. After the replies on this thread I decided to take apart one of the parts car axles before it was ever used on track so I could repack it and add the straw vent....this is what I found.

The Axle grease might as well have been water with a little grease added. I'm sure this one would've lost all its axle lube after a few session. The axle was from a car with approx 60k on it.

If you are tracking...remove the boots, clean and repack these things with a better grease to avoid an issue. I used Redline CV2 grease and suspect the issues I was having will be very less frequent now.