Welcome to the CCI forum Merchlewitz. You have some info on the loader and backhoe GT’s from other members. You might try if you haven’t already look at the manuals for these GT’s. These GT’s are a little larger than the 400 and 200 series GT’s. I own a 646 loader and a 644 lbh. Powerful machines that can make moving material a lot easier. Please keep us posted on what you may find in your search, if you haven’t already purchased one. ✌Harry