At work, rebuilt PCM for a 2005 Suburban. Trying to get a sealed Cardone reman now. The last AC Delco one had been opened and hot potatoed from dealer to dealer, so not even going to bother putting it in the truck. Might be able to send it out, I think to Cardone (GM just gives the address), but the last time was unsuccessful on our 7.4L Kodiak POS.
On my own vehicles, a fuel pump relay from O'Reilly's for the Explorer. The pump would keep running with the key off!