So my 2000 Suburban is at Shane's recieving new rear axle saver bearings, he says it should fix the problem but within the next year I'm going with a whole rebuild. This looks like the correct choice for the axles.
http://www.ringpinion.com/b2c/ProductDetails.aspx?ProdID=1714&Product=YA_G12471369&Brand=Yukon_Gear_and_Axle&Source=Wiz