the 1st thing to do, removing them, is very well detailed here: https://howtune.com/articles/333-rep...sler-crossfire
and before starting anything, we need a tool for enlarging the hole of the dust cover. ideally a 12mm drill, or a dremel to grind the hole to that size.
once having it, we can proceed to do the replacing. i think that now i got what we have to do to finish the job. will write the details once i finish doing the install.
bear with me. until then...