I have to replace the center support on my wagon and I have not figured it out yet. Looks like I need a puller but not sure if I want to mess with it.
You maybe need a puller, but it comes off pretty easily. A hammer can take it off if you've no intention of reusing any of the bits. I use a puller, but I have an array of them. They're pretty cheap at good ol' HF. -- Jim