Yes, the Arvin Meritor was one of the spinoffs. I sold mine because it wasn't doing anything and I couldn't see any real future in it. The other spinoff was the Rockwell modem company (which I can't remember the exact name of) It went from $2.65 a share to over $100 back in 1999 and I got pretty nervous about it. I sold when it had dropped back to $78 and it continued to go down from there until it disappeared.
Rockwell Collins has done pretty well while paying a decent dividend.
Yes, working out the cost basis on these things is a pain.