is it ok to weild TNT arms?

my kit did not come with the locking nut for the long arms,can i just weild the arms instead of useing the lock nuts?

umm...call up TNT and bitch? thats what i will be doing if my kit doenst come with lock nuts

then go down to your local parts store (Napa for example) and pick up a set of locknuts or nuts and lockwashers. You know, so that you can finish the install without waiting for TNT to send you the parts that were supposed to be in the kit in the first place.