The Liberal Republicans were the bridge by which the Democratic party saved itself from extinction. If the Straight Out faction wins and is able to form a ticket that mattered, which most likely would have been led by Jeremiah S. Black, that is creating a gap which the Liberals will not be willing to cross over. So Grant faces Black and Greeley or Davis as the LR pick and you've probably transformed the system. Especially if it's Davis that is the LR pick. The Remnant Democrats *might* try again in 1876 but they'll have gone the way of the Whigs. The question then becomes what the relation between the Redeemers and the Liberals will be. They agree on the fundamentals of white rule in the South but personalities and expectations of both sides can cause plenty of knock on changes.