wiper linkage arm fitment

they cost only 4 or $5,i put em in boiling water to help press em on the linkage arm but to boil em again n get under dash and try fit em whilst em still warm and pliable will be tough as they cool too fast for me to attach em.shame because if they were made to flex a little to aid fitment it could be an easy job.servicable parts like these should be managable and less stressfull,maybe the original USA factory bushings were better quality and fit and more flexible,i think China makes these parts afew thou tighter to piss us off and cause a revolution!!!haha