I am changing for both reasons. However, I guess the primary reason is because I am installing a No Limit IFS in June and want to match the 5 x 4.75 lug pattern.
I have heard the stock rear end is strong enough for the 350 I want to put in. But if I have to change the axles to get the right pattern I may as well go with an newer rear end as well.
It is a shame, the stock rear end is in GREAT condition.
