Yep you bring a good point. i always look for type of joints in any aftermarket control arm i run in any vehicle. I don't run anything aftermarket that doesn't have a flex joint, and typically i'll run something from a known brand when it comes to control arms.,I won't mention any names but there are brands i will not use.
Synergy in fact curves for both sides, for ground clearance and also for tire clearance. I'd like to think all high clearance arms are like that, but i really don't know which is also another point i want to make out this thread to learn, I'm just looking to know options in this segment of the arms.
I know Synergy does this because i've run both flavors fixed and ajustables form them for JK.
Adjustable Synergy
20170311_093830 by
RAM RSM, on Flickr
and fixed Synergy
2021-07-08_07-46-48 by
RAM RSM, on Flickr
I don't see anything special about the joint angles in either, and to me the Synergy bents are better than Claytons if i was looking to have more clearance down there, which is also another point of this thread. Granted i think that's why Synergy are also more expensive. Claytons have the bend like stockers and are also level like the stockers so nothing expecial on the joint angle either that makes you think oh oh this angle is not going to work.
My Synergy fixed compared to Clayton, you can see how both bent to the inside, but the Claytons are flat while Synergy curve up for ground clearance. Both joints self center which makes it almost impossible to mess the install, Core4x4 arms with JJ's don't behave like these, not because Core, but because JJ's don't self center so you have to make sure you center the joint yourself. Not a big deal if you know what you're doing at install time.
2021-07-08_07-46-37 by
RAM RSM, on Flickr
I have installed Core arms, Don't remember they had an special angle joint and if they did i didn't even see them

, This i did Core for a friend
2023-06-05_09-31-12 by
RAM RSM, on Flickr
I've also done TF in my Jeep (they bend towards inside) MC for a friend (they bend towards inside), Rancho for a Friend (they bend towards inside) Don't remember in any instance seen anything offset in the joints that would make look at one specific set of arms and reject the others unless the joints were rubber. I don't buy aftermarket arms with rubber joints.
I'd like to see how the Rock Krawler control arms look in real life.
I'd like to see if there is anytiung else in that realm and If they bent for ground clearance AND tire clearance or just for ground clerance.
From everything i looked so far i'd be inclined to get me a set of Synergy front lowers adjustable, mostly cause i've had them before and i know them already. But like i said, at this point in my setup i don't need them today, i might do something different tomorrow just cause, and maybe tomorrow i end with something completely different too or keep everything the same. Sometimes the triggering factor is a big discount and i fall for it
