Oh some knucklehead did a quality write up on r&r-ing those many moons ago...
Not plastic but terrible design and quality regardless.
Skip step 1 as it is the only way to get in there. BUT not necessary to fix properly... and BTW do all six while there as I can assure you all will need done sooner rather than later... ounce of prevention so to speak...
Good luck and happy nutserting
