one thing i noticed about a welded front is if you dont phase or clock your u-joints then steering realy sucks, if you phase them like drive shaft then they work much better. you should do this because if a drive shaft ( example ) is not put toghether with bolth u-joints in the right dircetion ( in line with eachother or phased ) then the bind and fight eachother.
my friends with YJ's weld there fronts and then run a POSI LOCK cable in the front so they can lock and unlock the front kinda a por mans selectable lockers, works great to.
one more thing about phasing your u-joints, some peaple think they can lock/unlock there hubs to phase them but if you think about it this wont work cause the carrier is locking them in the same posistion all the time, you could pull a shaft and turn it to the same direction as the other side but its better to weld them clocked, jason.