I have heard bad things about the auburns not lasting.

 

I can't confirm or deny that, I got rid of that truck not too long after that.

 

I saw it not too long ago though still on the 35"s with 4.56's, With me driving I know it was holding up, but that was just for a few months

 

how did the 4.56's and the 35's do i thought i heard it make the rear end relly weak when you go to the 4.56's cause that is what i wanted in my truck when i get my lift but was ensure if it would hold up or not.

 

I'm not to sure about a 4.56 being a vulnerable gear, granted the increasement of gear makes them weaker on the account of more leverage/abuse being imposed on the gear. In an 8.5 10 bolt they should be fine (assuming thats what yall have with your half tons), and of course 12-14 bolts wont even realize the change LOL.