I would think not having the carrier in place, would cause unusual stress on the outer axle bearing and seal. Although the shaft is bolted to the backing plate, so it may not matter. Sorry, I don't have an answer, just thinking out loud.
'95 YJ,2.5" SL,1" BL, BFG 33's, t-body, magnaflow exh. 4 banger
All I need is more money, more space, and more time.