Well, I got started on the install this evening after work. I first got out my supplies:
(new shocks, coil spacers [1.5" rear and 1" front], liquid fuel)
and my tools:
(4-way, heavy duty jack stands, floor jack....a creeper is helpful if you've got one)
Here is a "before" shot.
I will first install the rear spacers and new shocks. First thing you need to do is chock the front wheels:
Then I loosened the wheel lug nuts and remove the lower shock mount bolts (on both sides of the axle). I also unhooked the anti-sway bar (again, on both sides of the axle). It's best to do this at ride height so that there is no tension on any of the mounts. Here's an after pic:
You want to raise the vehicle high enough so that you can rest the frame on your jackstands and be able to remove the wheels and floor jack from the axle. Just let the unhooked (sway bar and shocks) axle droop.
Now, the reason I unhooked the sway bar is because you need to be able to easily articulate the axle to remove the spring. The easiest way to droop the side of the axle that I am working on is to jack up the other end (everyone remembers the principle of leverage). I just put my floor jack under the shock mount and start raising:
Now you can pop out the coil spring and install the spacer between the top of the bumpstop and the coil:
Before you reinstall the coil/bumpstop/spacer, it's easiest to install your new shocks (if you are going to do so) at this time:
Just install the upper shock mount for now.
Then reinstall the coil/bumpstop/spacer:
Make sure to rotate the coil so that it sits properly in the spring perch.
A side note here, in the above picture you can see that my bumpstop was actually contacting the spring perch pad (in the middle of the coil at the axle). It should be noted that this vehicle is and always has only been driven on the street. The rear axle should see nothing but normal use...no extreme articulation. The bumpstop should NOT be contacting the lower spring perch on a regular basis, but it seems that it is. This is why I believe that my coils have sagged and why the ride was so rough and the reason why I chose to add the spacers.
After you have installed the upper shock mounts and reinstalled the coil/bumpstop/spacer on both sides, you want to put your floorjack back under the diff and raise the entire axle until your lower shock mounts meet the end of the shocks. If you are using gas charged shocks, they'll be difficult to compress, so it's easiest if you bring the axle up to meet the shocks. Install the lower shock mounts. Then reinstall the wheels (just tighten the lug nuts by hand) and remove the jackstands from under the frame so that you can lower the vehicle back to it's wheels. Tighten the lug nuts, reinstall the anti-sway bar links and tighten/check all bolts that you removed.
The rear end is done: