I believe it #520 and about 8k miles.
when my steering was sticking I thought the same thing, its the joints. take all joints loose to expose the rack input shaft and turn it slowly with pliers. I felt the stick while doing this test. if you or now of someone with a lift this is a very easy test from below. below is a link to another thread on this issue:
BDR: Steering binding – Do I replace the rack ??