Bob_Spidell
Yoda

Online
Haven't been faced with this problem in a while, but I think a puller might work for you (sounds like you have dried grease and crud in the bushing):
https://www.harborfreight.com/three-jaw-puller-set-4-pc-69104.html
https://www.harborfreight.com/three-jaw-puller-set-4-pc-69104.html