Well I got out the old grease gun today to grease the front end on my 01 1500 Off Road, and there's only one regular grease fitting under there. All the other 6 or so boots don't have the regular grease fittings, they've got what looks like around a 1/2" nut with a threaded base. What's that... a weird fitting, or maybe a sealed boot? Whatever it is, it needs grease bad. The boots are empty, dry, and starting to crack. Thanks in advance for the help.