no they arent all the same!

depends on whether or not its the early or the late puma. the suspension arrangement that connects to the axle. the early axles use spacers behind the breaks, these can be removed whereas the late pumas have the spacer welded on to the actual axle!

i have an early puma but i have the later type suspension setup but off the fiesta as it doesnt have the spacers on it, so it works better with the rear disc set up off a focus as! hope this helps a little!