Have you found the issue yet? I have been having the same problem and have replaced the suspension rod also. I have noticed that when it is spinning it is louder than normal so next I'm going to replaced the shaft and bearings but before I order anything I'm going to check the stator because apparently they crack. I will not be buying the installation tool though that thing is more than the shaft and bearings I will make my own tool.

Rawe,
Look under your machine for signs that that bearings are bad. See attached picture. If you see what appears to be grease inside the rotor and its spattered underneath the washer, then the tub seal and bearing are bad. You might also hear noise in spin cycle like tumbling gravel or a freight train. Also signs that the bearings are going bad. Another issue for your UL problem may be the sensor itself. It may be going bad or have corroded terminals. This sensor is attached to the stator and if the sensor isn't bad the stator might be cracked enough to place the sensor in an awkward position causing the UL error.
Please rule out all other issues before changing the bearings, a timely and costly endeavor if not necessary.
I wish you lived near me I'd loan you my whirlpool bearing press, you know some companies rent them out....
Hope this helps. Sorry but in my time zone you were typing at 3am I was sound asleep so I just saw your message.