After watching several different YouTube videos with increasing trepidation, I stumbled across the how-to video from AppliancePartsPros.com, and it was exactly what I needed! Even though my dryer is considerably older than the model featured in the video, and differed in a few key ways, the video walked me through everything I needed to know without assuming any prior knowledge or making me feel anxious or incapable. Other suppliers offer many sets of knockoff replacement parts ($30 for 4 roller assemblies, belt, tensioner & spring), but I opted to pay the $190 to purchase authorized LG replacement parts from this website based primarily on the quality of the video--and I'm glad I did! The parts arrived within 48 hours, exactly as described, and the replacement process went almost exactly as described in the video. It took my son and me about 4 hours to replace all 4 rollers (although most of that time was spent slowly and cautiously disassembling my 16-year-old dryer), but we had never attempted any kind of appliance repair before, and the process went beautifully, thanks to the video guide. The dryer is running like new--I had forgotten how quiet it used to be!