Can you just replace the bearings? I was able to just replace the bearings and installed zerks as well. Saved me hundreds of dollars.I have a Bad Boy ZT 60 inch desk and I need to replace the spindles. The pullies are stuck and one of them was not torqued at the factory and was half off the shaft but all 3 are stuck. I have applies plaster to them and they are soaking. How do you get the pullies off?View attachment 65655