Leaf spring perch not centered

[truckin 79]

Okay so finally got around to changing broken leaf spring on rear passenger side. Everything went together easier than I thought until I tried to have center bolt fit into lift block. The rear end needs to come foward and to the outside. I was using two floor jacks to change out broken leaf. How can I force rear end back in the it’s perch. I am thinking I do not have the right tools to force it back where I need it to go. Anybody done this before with success