At 580,000 km's on my 3500 work truck, I've done my fair share of U joints. I didn't get good life out of SKF's or Napa's in that truck. I've gotten the most service life out of Dana/Spicer/Mopar U joints. It's all I will buy now for my 3500 and my SRT-10 ram.
Watch this guy's entire series on U-joints, I learned that there is way more to installation than I learned from Chiltons manuals over the years. I started saving snap rings so when I change a Ujoint, I can do the dial indicator test to get the run out to a minimum, it really makes a big difference in the drivelines smoothness and U joint life.
Nice!!!! You opened a can of worms I did not want to get into, but the install is everything. I save snaps and even thin them a little If I have to to get the run out perfect. Balancing is overrated, run out and a free moving joint after install is the big ticket.
