46RE ticks in all gears except reverse

So it was the torque converter after all. The .030" runout I measured (yet wasn't overly concerned about) ended up being the culprit, just enough to tap the back of the block on the way by, and the ring gear weld seam is right at the highest point. After sitting outside all this time, the front of the ring gear developed some rust, and it was wiped clean where it was hitting. I pulled the T/C bolts, slid a thin washer (about .020") between the flexplate and each converter lug, and reinstalled the bolts. Nice and quiet. Now to come up with a permanent fix that hopefully doesn't involve pulling the trans out.