No, thanks for the added info that's great. The axles did have the sleeves and I cut them off when I removed the old bearings and used the retainers that came with the bearings because I read on this form that you could just use the 28spline seals. I guess that was probably not what I should have done but at least its an easy change. So is sleeve vs no sleeve a distinguishing feature of what year the axles are from? I'm still curious what year mine could have come from the factory in.