I'm not sure what the visual difference between the annular and homokenetic axle is. I bought a pair of reman axles from carquest for $69 each and they fit. I think that they are actually interchangable.
Its an easy job just a little frustrating.
You'll need a 17mm Hex which can be a pain to get (I got mine at AutoZone). And a sturdy pair of snap ring pliers. The ring that holds the axle into the diff is a pain in the rear to pull out. Don't be tempted to get on of the interchangble types you'll need something very sturdy to get the rings back on.
Loosen lug nuts on both rear wheels.
Jack up rear. Put on stands.
Remove both wheels.
Take 8mm deep socket or socket with 4in extension and remove the bolt inside the rotor (this holds the axle in). Do both sides. I put the lug nuts in the rotor and used a bar to hold the rotor still.
Take 17mm hex and remove the fill plug on the diff (top plug)
Once that one is off remove the bottom plug. (You don't want to get the bottom off, drain the diff and then find out that you can't get the fill plug out).
Remove the 4 bolts on the diff frame mount. (support the diff with a floor jack and a block of wood or something).
Lower the diff (I let the left axle rest on the muffler pipe)
Remove the diff cover (8 bolts)
Jack the diff up as high as you can
Pull the outter end of one of the axles free from the wheel bearing. (you might need a long socket extension and a hammer to knock it out.)
Lower the diff while pushing the axle to the rear.
Grab the snap ring in the diff and yank it out.
The axle should pull free.
Do the reverse to install the new axle.
Curse like a sailor as you bust your knuckles 4-5 times trying to get that darned snapring re-installed.
Repeat on the other side.
Put everything back togehter.
Re-installed drain plug on diff
Fill with your favorite gear oil till it flows out of the fill hole.
leave your drain pain under the diff.
lower the car (make sure you've put the wheels back on)
Either struggle to get back under the rear to re-install the fill plug or jack one side back up.
Go for a short drive.
Check for leaks in the diff.
All done.