A-Body Axles
Keep in mind that the cheaper yukon axles aren't worth zippy if you have 2 piece side gears in your chunk. According to Cass (dr. Diff) you only have about 1/8 inch of axle engagement with the diff when you run the 2 piece side gear with the yukons.
Cass has axles that address that problem, or the one piece side gears if you really want the yukons.
I already had my yukon axles so I opted to install the 1 piece side gears instead.
Good luck!!!
CE