After going through a spell of breaking 4 cv axles in 4 weekends with a welded, I can surely tell you that the car pulls in the direction to the side that the CV axle breaks, usually thats the left axle that breaks, therefore pulling to the left. I have found my problem and that is now fixed, usually it happend around lefthand turns, if it ever happens on a straight, the CV was going bad anyway. Usually the yank at the week is not too bad, and can be controlled, especially after it has happened to u once. After all, i miss four walls each time it happened. just my experience, Forget welded go with a SPOOL!