RZR 4 Specific Discussion 2010 800 4 seater need u joints October 19, 2015 Need to know the exact part number for greasable u joints someone that has done this before surely would know for sure. Looked everywhere only to find 338 at Napa might work. I have two of the same up front and one bigger towards the back. Thanks Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related