Today I went and got 2 pairs of Energy Suspensions Polyurethane bumpstops. I got the 11/16" one I believe, they are part number 9.9102RC. I was going to get black but they only had one pair so I went with red. Next up should be BJ spacers!

 

Well install them and let us know how they work! You should do some sort of test involving the stock setup compared to the new bumpstops. I'm going to do them very soon. Don't forget to do this

 

If you're going to do ball joint spacers, keep the original upper bump stops. You'll need to put them back in or you'll over extend your CVs when the suspension droops.

 

Jason is right. I'm yet to see a truck that can tolerate the spacers with low pro upper bumpstops. Given the angle of the upper arm, minimal gains are to be had even if you find you can make it work. Shocks will likely over extend beyond the point of shimming too.

You can however use low pro lower stops.

Should you decide to experiment, do this. Whith the spacers on, and at full droop, lock the hub and spin it. Do this with the tires turned full each way too. It should have no binding and the suspension should not move sympathetically as the joint spins. First things you'll notice if you are pushing them too far is the suspension will move up and down as each of the three balls takes turns pivoting and binding.

Frank

 

I am keeping the stock uppers, I got 2 LP pairs to replace the 2 stock lowers on each side.
Thanks