quick stupid question. i am going to get new ubolts bent on monday for my 60's. out of an 89 dodge. i dont have any to take with me as refrence. are they 3.5 inches or 3.25 inches center to center at the top? thats what the guy asked me. i had one 3.5 and it seemed a little loose. i am curious if a 3.25 is too tight. sorry if this sounds stupid.