For the front, you need the factory spring compressor or long threaded rods, stronger the better. Acme thread even better. Take out two diagonal spring pan bolts, replace with long rods, run the nuts all the way up to do the work of the missing bolts. Undo the other two bolts, then slowly let the spring pans down by unthreading the nuts on the long rods. Takes some time, be very careful. Stock front springs are under tension even at full droop. Very dangerous if you don't know what you're doing. You cannot just put a floor jack under the pan and undo the bolts. SPROING, there goes your fender and your arm.
Rear, jack it up high, put jackstands under the rear jack points. Let axle hang on straps. Undo shocks at bottom. Undo rear trailing arm nuts, loosen front nuts. Put a floor jack under the rear bushing of each trailing arm, raise just enough (not even an inch) to relax pressure on bolt. Push bolt out, let trailing arm down til spring droops. That's it. Wholly different from the front. Axle will hang there on the trunnion and the straps. Be wary of the driveshaft angle, best to support the diff front.
If you want to take the axle out, now undo straps, parking brake, brake hose, driveshaft, trunnion cones. Support axle, maybe on short jackstands, slide right to clear trunnion.
With short aftermarket springs, both front and rear may be easier. Front springs can be 4-10 times higher rate than rear, so beware.
Last edited by Andrew; 11-23-2016 at 04:31 PM.