I'm having some steering issues in my '83 bobber (very erratic, loose, darty), so while checking my tie rod/knuckles/etc I noticed my birf is leaking. I'm not super familiar with birfs, but I'm guessing based on this photo that I'll need to rebuild it. I bought new wheel bearings so far to see if that would correct the steering issue, but noticed the birf just yesterday. Would a leaky/blown birf contribute to erratic steering as well? I'm wondering if maybe the worm gear in the steering box is missing teeth, but first I want to try these things. Thanks for your help.