i have a Dana 44 in the front of my toy with 5.38's and the same tires. i have a 22re, sm465, 2.28, and a 4.70 and so far the axles have held up good. It all depends on how you play and how much you like the happy pedle. I have ran the trail gear springs on my truck and runner. They flex good but they do start to sag quick. You could always go with bigger and cromo shafts but like i said it depends on how you play and what you want to spend.