MuuMuu101's 68 Dart, A Learning Process...
Good news: Got the new starter. It is physically smaller than the old one, looks to be built well, weighs 1.8 lbs less, and has a partition for the power and 12V cables so no shorts.
Bad news: I need a larger terminal for the 12V cable as this one is a little larger.
Good news: I'll pick up a terminal at work tomorrow.
On a side note: I did notice that the old starter had slop in the gear shaft whereas the new starter was tight. So my guess is the solenoid was going out.