Ok, just saw this on my 4x4 Club forum! Don't know if they have been posted here already, just thought I'd share what I saw/heard. Some new u-joints that are GUARANTEED against breakage! They have been using them in the ARCA rock crawling events, have yet to break one there! You must use axleshafts that allow use of a full circle clips. They are also rebuildable. The cost is supposed to be $150.00 each, but hell, if they are really unbreakable, that might be money well spent (of course you lose your "weak link" u joints). Anyway, here is the link to the company web site, they are in my area, gonna see if I can go by and take a look! <a target="_blank" href=http://ctmracing.com/axle.shtml>http://ctmracing.com/axle.shtml</a> Their phone number is on there.