i cant decide if i want to weld the rear diff on my 78 subaru brat. it has a 4 inch lift, and i run 27-29 inch tires on it. i primarily use it off-road, but it does see occasional highway driving and around town. if i weld the rear diff, i know it will help a lot off-road, but im afraid that when i drive in on pavement i will break axles or the diff itself. i know some people weld the diff, then remove an axle for street driving... but that sounds like a pain to do all the time. what are your experiences with welded diffs? should i do it?