It implies that the angles are ok.
Could still be an issue with joints, yokes, etc.
Have you tried to eliminate the vibe with a TC drop?
Did you ever drive it with the rear driveshaft out?
I did try the T-case drop, but it wasn't low enough, I think. Did the uneven yoke wear I had in an earlier picture seem strange to you, or is that normal? Could something in the rear diff cause anything similar to this? I did drive without the shaft, and I couldn't replicate the shudder, but I would just do burnouts instead on accident.
Can you tolerate it as is?
How do you plan to use it?
How long do plan to keep it?
I think I can tolerate it, like
@JMT said for OCD's sake I think would really be the only reason I would fix it, as there appears to be no damage or wear on anything. This is my daily, and weekend toy, so probably for a while. Every time something comes up, I think about selling it for a Tacoma or something, but then I look at everyone else's builds and the various threads on here and change my mind. My relationship with the Jeep is definitely love/hate, but at the end of the day, it has never left me stranded of its own accord, only if I did something stupid to it beforehand.
This only happens under high torque when you start for like a second. I’d move on. If you are OCD get an SYE, DC and rear Ca’s. It’ll only cost $1500 if you install it yourself.
$750 rear CA’s
$350 SYE
$400 DC
However, what I really think you should do is buy about 30 washers and add 5 to each skid plate mount to drop the TCase about 1/2”. Then go for a drive and see if it goes away.
Knowing that you have this same problem with your Jeep and the other 2" one you said you are working on and didn't have issues, I think I will leave it. The more I think back on this, the more I'm pretty sure I've had this since my lift was installed a year ago and never really thought twice about it. I've gone on multiple trails here in my local mountains, harder trails in the area, jumped it a few times, and may have gotten it stuck in the mud all the way past the frame… (Profile picture was the first time with no lift) Over these two years, I never had any issues with it. And now seeing that
@LONGJP2 is saying my angles seem to be ok, and you, reminding me it only happens for a second, I think I will move on like you said. I may do the washers just for my own piece of mind. If anything catastrophic happens, I will be sure to post either on this thread or make a new one entirely.
Again, thank you everyone for all your help on this!