Just found this site

As the title states. I stumbled here because I just picked up what appears to be a pitman arm arm puller. On a whim I did a search for the mfg's name on the tool and this site came up.
While I do collect JH Williams, and Vulcan Brand tools already, I think I just found another way to spend too much money and time I don't have. Looking at the website, it appears these tools are very reliable.
Anything from Buffalo has be good!