i've got magnum force uppers and they've been on the car for years. they're the non adjustable type and so far i haven't had any issues whatsoever which is saying something because of the crap road maintenance here. i've heard all the issues with fit and fitment of the k-frame that magnum sells but(knock on wood) the uppers seem to be a good product. also, even though they are not adjustable i'm still able to gain more caster than i really need. i had my alignment guy put as much as he could get and he called back with the numbers and asked him to back it down to 3-4 degrees. i think he had around 6 degrees dialed in, maybe more, it was awhile back.
that sucks that you have those nice rms pieces and they're hitting the rim. maybe bill can help you find a new buyer for them or somebody on this site will snap them up.
