Guys, if you're just gonna replace the differential and not the pinion bearings, then it is a real easy install. You'll probably want to take the diffrerential to a machine shop and have new bearings pressed on, since you can't really resue the old ones since they tend to get damaged when you take them off. Jack the truck up, take the wheels and brake drums off, take the cover off, and spray everything down with a little brake clean, so its not so messy. Then get a 5/16" wrench and take out the bolt for the crosspin in the differential. Carefully slide the pin out. Push the axles in, and use a needle nose, or a magnet to get the axle c-clips out. Once you get them out, pull the axles out, then put the crosspin back in so that the spider gears do not fall out of place. Now you can unbolt the carrier bearing caps (3/4" bolts I think) and pull the differential out. If its in there tight just use a prybar and gently pry it out(make sure you note the orientation of the shims when you pull the differential out cause you'll be using the stock shims again. The beveled side should face towards the outside. Once you get everything out you can swap the ring gear onto the new differential. Depending on what bearing kit you get, you may get new ring gear bolts. You may have to hammer a little on the back of the ring gear to get it off. Check the the excitor ring for nicks, if you have any, you'll want to replace it. Then install is pretty much the reverse, except you'll want to put the bearing caps (arrows face out) back on before reinstalling the axles. Once you have everything back in place, you might want take some marking compound and put it on both the ring gear and pinion on about 4-5 teeth. Then turn everything a few times and see how the pattern looks.
That should be pretty much it. If I forgot something, hopefully someone will chime in. Have fun, take your time and it should be a breeze.
