Thanks for the help guys, there not as expensive as I thought, I will prob buy a few extra. Is there anything special I need to know about installing the new cups, any advice is greatly appreciated. I have the Fun Factor truck with the yellow and red truck body. Is there any other part that is prone to breaking I should know about with this truck?

here is the link I went to...is the right part I need. I'm pretty sure it is being the same part # and all but just wanted to be sure. http://www.ehobbies.com/rc-cen-gx12.html