Hello, before i ask my question i just want to say that i am a rather new owner and i am already hooked at age 16. anyways, to my question, on the front part of the drive shaft, the slip yoke i believe, there is a 3/4 in. size cap that seems to go into the slip yoke. I was under my cruiser greasing all the joints and stuff, and noticed that this cap is not fully in the shaft and will not allow the yoke to hold grease. help? i think i should unbolt from the shaft from the flange on the third member and take a closer look. ideas? thanks in advance, Dylan