I recently bought my son a set of 33s for his '88 YJ (Dana 35) but have been told that the 33s are too big for the Dana 35, which should not be driven with anything bigger than 31s. Any experience/advice out there for us? If we run it with the 33s, what is the likelihood of snapping the axel or ruining the gears. We're new to this whole Jeep thing and I just want to make sure his vehicle is safe. We got it from a relative and my son will be using it on a daily basis around town and occasionally back and forth to school (2.5 hours hwy each way) but very little off road. Would a rebuild of the Dana 35 help -- is it necessary?