Gregory W Summerville , SC October 22, 2016 Appliance: LG Washer WM1814CW Lg Washer Wm1814cw: Bad vibration and clunking sound. How to replace Outer Tub Seal. Replaced the spider arm assembly. I found the instructional videos extremely helpful. The parts arrived quickly. This is a very in-depth job so make sure you label and keep the parts and screws separated as you remove them. The only big problem I ran into was removing the old spider arm assembly. I ended up striping two of the bolts and had to drill them out. That was very time consuming. I also replaced the bearing while I had everything apart. Getting the inner bearing in place was a little difficult but with patients not impossible. Do-It-Yourself Rating: Repair Time Estimate: 2+ hours