Just to add to the extreme conditions that racing puts on the vehicle... I have wheeled Moab many many times... rock crawing at its best.

What Dave puts the XterraRacer is 100x more pounding than the trails we do while rock crawling. If you consider that the 4 spider made it 700 miles, the replacement 2 spider made it 138 miles (I broke that one!), and the replacement 4 spider made it the entire 250 miles at the last race... the 4 spider is definitely stronger. Having riden with Dave now for about 500 miles of racing I can tell you that this is extreme testing on the parts that everyone has in their Xs. Eventually everything will fail... the real joke is the front diff... 3 miles the first race I rode, then 13 miles the second race.

My X is a very early 05 and I am sure it only has the 2 spider... I'm worried and wonder if there will be a recall... would be nice!

Great thread, keep it going.
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KE7AEY
Those damn voices in my head... gotta get DIRT!