RDHamill, I have. The original lift pump failed, and when I took it apart the pump was perfect, no scoring, nothing. I took my dremel to the crimp and found that the bushings were shot on the motor causing the armature to bind. 5000 miles later, the replacement pump failed, and again, the pump was like new but the bushings were bad. I'm on the third pump now, and so far-so-good! I read on the internet that these pumps had a rash of motor/bushing problems and carter modified them. There is supposed to be a way to tell the "good" from the bad by the part numbers, but I don't know what that is. If anyone knows, I would appreciate the info. Anyway, in my experience, the motor bushings are the weak links.
Larry