You are only part way there -- if you have replaced the camber, thrust, and torque links and still have droop, either the springs are going or the bushings on the spring link (and spring buffers) are dead.

Usually the torque steer is bad torque links (the diagonal ones that are such a pain to get out), but if the rear subframe mounts are bad, you will still get the whole subframe twisting off center under torque. Won't make the wheel camber in, though.

Also, was the suspension level when you tightened the link bolts? The sleeve stays put, the rubber flexes, so if the suspension wasn't in "level" position, the wheel will be off.

I don't remember if the camber link is adjustable, if so, it's time for a rear alignment (I'd do a four wheel alignment at a good shop before getting too excited).

Bushings aren't hard, does require removing spring, though.

I'd also take a look at the dif mounts, probably gone too.

Peter

__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!