Front axle u-joint pictures

[ctcomputers]

Still learning the ins/outs of my TJ and noticed some rub marks on front axle u-joints tonight. Are the marks normal wear or a sign that u-joints or something else might be going bad? Plan to look closer if there is play and whatnot when I have the chance.

 

[Jerry Bransford]

With the tires solidly on the ground, have a helper repeatedly turn the steering wheel rapidly back & forth while you watch the u-joints for signs of any slop. There should be zero slop anywhere in the u-joint.

If you see any slop replace both with a Spicer 5-760x u-joint. Both steering stop bolts are in place on the steering knuckles right? I see one of the two is there.