doesnt seem like the poster is going get this info
but indeed a axle is the best way if your spacers slides sideways
another tip eagle told me, is to turn your oven on to like 90" degress place the wheel in the oven, until the temp heats close to 90" then take the wheel out & try the aluminum explains then its easyer to slide out
NO it wont fk or melt the wheel unless you do it too long above 90` degree
i think eagle use a special heat plate to do the job