1968 Dart Fuel Pump question

1968 Dart 270 said
That's sad that you're saying they changed them to the sealed ones and they are more unreliable. It used to be these mechanical ones lasted forever.

I fat fingered that, I meant to type not rebuildable

My dart 273 the original Fuel pump lasted 163,000 miles replaced 1980

The last one was installed in 2011 at 312,000 miles

It is still going strong 30,000 miles later even after sitting for 4 years without being fired up