Its easy. Just remove the wheels, pull the drums off, and then remove the bolts that hold the brake backing plate to the axle tube. Take the backing plate off and the axle will slide out with the bearing on it. If they don't slide out easilly put the brake drum back on the axle backwards, then put a few lug nuts on and you can use the brake drum as a slide hammer by sliding it on the wheel studs.
Once you get the axles slid out about 6", unbolt the diff and drop it out. You might want to unbolt it first to drain the oil, unless you want it running out the tubes when you pull the axles out.
Then just put it back together, bleed the brakes if you disconeccted the hard line, put the driveshaft back in, fill it up with oil, put th etires on, and you good to go.
Once you get the axles slid out about 6", unbolt the diff and drop it out. You might want to unbolt it first to drain the oil, unless you want it running out the tubes when you pull the axles out.
Then just put it back together, bleed the brakes if you disconeccted the hard line, put the driveshaft back in, fill it up with oil, put th etires on, and you good to go.