Currie Johnny Joint Upper Control Arms

The Currie Johnny joint upper control arms are meant for use on the Jeep Unlimited and TJ with a model year falling between 1997 and 2006.  These control arms are totally adjustable which means that you will be able to adjust the angle of the pinion once a lift kit has been installed.  These Johnny joint upper control arms have been made from tubing measuring 1 inch by .156 wall.  They do come to you complete with the Johnny joint on either end of the control arms.

These are great for anyone who wants a set of adjustable arms in case you are planning a lift in the future. 

What is the purpose of having Johnny Joints in the Rear?

The control arms are in control of the rear and front axle movement while the trac bar is in control of the lateral movement of the axles.  Sway bars have the control of any upward sort of movement.  That said, how can the Johnny joint be beneficial?

When you are going over terrain that is rough, the suspension flexes even though the axles do not go straight up and straight back down.  It might be that one side is up while the other is still lower.  The control arms in your Jeep won’t be perpendicular when it comes to the mounts.  In order for the suspension to be able to flex, they will need to have a bit of give.  This is why your factory installed control are have been fashioned in the way that they have.  There is a channel located in the arms that has to have a bit of flex to it in order for it to be able to follow the suspension that was installed by the factory.

If you decide to add some beefy control arms to your rig and you do not give it some sort of way to move as it should then you could actually damage or even rip the control arm mounts off totally.  For this reason, most of the control arms found on the market today are sold either with a Johnny joint or some other type of flexible mount.

The Johnny joints on the Currie Johnny joint upper control arms are simply the best.  Johnny joints made by other manufacturers are known to squeak, rattle and even to come apart.

You will need to visualize what the suspension does in order to articulate as well as what it does when you hit the gas and even when you stand up on your brakes.  This will allow you to know why you need them. 

Again, when it comes to dealing with Johnny joints, Currie is the only name you need to know.