When MOOG bought out the remaining stock of TRW parts in Advance auto's inventory, the TRW parts were switched to Moog boxes and sold as Moog parts (this was not an Advance decision). TRW makes good stuff, a lot of OEM stuff is TRW. The only thing i've found that Moog is usually superior in is more of their stuff comes with grease fittings, but TRW still has a lifetime warranty.
Go with one of the two, the are both excellent products.
2000 P71, Boiling Spring Lakes NC Car 5 **SOLD** and still floating around somewhere...
2004 Mercury Marauder, Silver Birch #51 of 997. Built to be blown but still (for now) N/A!!
2007 P71, Albemarle County, VA Car 52.