Synergy or teraflex ball joints?
I had Dynatracs on my stock axle for several years, they did great but when I swapped ut the front housing I couldn't justify the expense over Synergy. I've had them on there for a year with no issues at all. I looked at it as, look, I can get three sets of Synergys for one set of Pro Steers...game set & match. The new Teraflex joints look good but I'd let someone else be the test mule.
I had 30k + on the Synergy joints and they were going strong but just switched to a TF 44 axle with the TF joints so in another 30k miles I will be able to give you a real comparison review. I do like how the TF lower joints are greased since you grease them from the side of the joint instead of trying to hit the zerk fitting on the top of the Synergy joint which is directly below the inner axle.


