Rear shackles are a snap. Just did a set on my truck this weekend. Easiest way I found was to pull the tires, jack it up by the bumper with a Hi-lift, and set a hydraulic bottle jack under the pumpkin. Take the load off the spring pack, and undo the bolts. 17mm socket (3/4") worked on my truck. use a hammer and a punch, to drive out the stock shakle. Install the shackle on the frame, then adjust the axle to the right height and place the bolts. Tighten (not too much, or you'll limit articulation but make sure their not coming off). Your done.

Things to consider: Shocks long enough? Brake line long enough?

As far as the greasable bolts, Not sure it makes a big difference. If you have problems with the shakles binding, it may help some. Not convinced it's worth the extra $$.

Best of luck,

Erik <img src="/forums/images/graemlins/cheers.gif" alt="" />