For an HP Dana 44 you can get the fancy CV axle shafts but they do not come cheap.
The stock stuff is about as skimpy as a dana 30, 27 spline axle shaft
See here for comparison
The JK Dana 44's seem to live with 37 and 39" tires if you do not go completely nuts
A friend of mine went through about 4 or 5 warn stub shafts on a Hi Pinion Dana 44 is a period of about 4-5 months on 37" Krawlers with a Chevy 350 in his TJ