I'm just about to replace the left rear axle, knuckle, and control arm for my 1990 Loyale SW for the 1st and hopefully only time but it sounds to me to be the same damage that was done to mine due to bearing failure. Mine one the other hand is a push button 4-wheel drive on demand and then All-wheel drive otherwise. I believe the one you are dealing with would also be all-wheel drive (not 2). Don't know if that makes any difference or not 2 B honest. My hope is that I can find the entire axle, hub, knuckle, control arm assembly at a wrecking yard for about $75 - fairly simply labor to change it out. GOOD LUCK