if you want a pretzle that does not perform well... get a clod axled, STICK style crawler and you can have as much articulation as you could ever want--- possibly 180+ as long as the wiring allows [&:]. More than 70 may look cool, but it would suck on the rocks, that is why everyone keeps saying the same thing to you. Also the 20T motor will not be capable at all for crawling, you won't be able to gear it low enough. What you are wanting to build will not really be a crawler, but an overly flexible trail truck. Good lucki