Good idea to always compare new/old parts before swapping.
Glad you got it taken care of.
One a side note, I'd be wary of any of the axles floating around our local autoparts shops (ie: Discount, Napa, etc.). I've had very bad experiences with all of them failing (less than a week of use) and have since then stuck with stock. Pricier yes, but at least it's not a poorly done rebuild.