Depends if you really like the D35 or not. I know some like the D35 and still use it. I'm not in my 97 TJ.
If the D35 is flange style, then some say that it's better than the 'C' clip style. I have a friend with a late 80's XJ with 4.56's, 33's, ARB, and flange style axles. No a break just yet, but it's only been less than a year. He's carrying my shafts for spares.