Will a 53 ford pickup fit on a ford ranger frame?

A 1953 Ford pickup will not fit directly on a Ford Ranger frame without significant modifications. The dimensions and design of the two vehicles differ considerably, so adapting the 1953 body to a Ranger frame would require custom work to align mounting points, suspension, and drivetrain components. It's often more practical to use a frame from a similar vintage truck for a restoration or custom build.