Sort of a detail, but I was doing the initial grease on the greasable shackle/spring bolts, and one of them is super tight, like there's no path for air or grease out from the zerk. After 1 pump I can't pump the grease gun because there's too much resistance. This only happened on one of the 6 I did, a rear shackle to spring bushing. Any thoughts? Should I just drive it around the block or something and see if it opens up a bit? All the other pumped okay, and vented grease someplace, normally to the top of the spring.
