Found this on a JeepForum post:
* Track bar/panhard rod. 1 nipple at chassis end
* Track rod ends. 1 at each end of axle and 1 at the steering box drop arm. Possibly 1 at the mid-joint of the drag link but I think this one is usualy not greasable? so 3, maybe 4 on the steering linkage.
* Steering swivel ball joints. The top ball joint is greasable and this is easier to get to if you take the wheels off but not essential. The bottom ball joint isn't usually greasable but I think some specialist aftermarket ones might be.
*Front axle driveshafts have a UJ at each axle end. These are often not greasable but they can be and the grease fitting may be the usual nipple between 2 of the bearing caps(although there is no room to get a conventional grease gun in to it) or a flush fitting on the end of 1 of the bearing caps.
*Front propshaft has a greasable sliding joint and 3 UJ's which probably won't be greasable if they are original. The UJ nearest the gearbox could be greasable by the bearing end cap as there is no space to get to an inner grease nipple.
* Rear propshaft has 2 UJ's which again probably aren't greasable but worth checking. The sliding joint of the rear propshaft has to be dismantled to grease it but it is advisable to do it every few years, undo the uj straps at the rear axle(4x 8mm headed bolts) and remove the prop to grease the splines.
For the u-joints, if they have been replaced with aftermarket parts, then they may have grease fittings as well.