Went online to find videos with same problem and how to fix it. Found Appliancepartspros with their videos and OEM parts. The Samsung dryer shown was a little different from mine but the internals were the same. Of all the videos I watched it should have been stated that once the drum is in place, to wrap the belt around the motor and idler wheel is by feel. Then using an iPhone to record footage of what I did to make sure it was threaded correctly. Took me 2 tries, about 30 min and a scratched arm but got it on and it runs nice. The parts fit perfectly, no issues AND kudos to Appliancepartspros.com for sending me an email when they thought something wrong with my order. Had to call verify it was me and order went through no issues. I appreciated you guys looking out for me verifying that fraud wasn’t taking place. That was really nice. Thank you. It took me longer to fix, because I went slow taking my time. If I had to do this again, easy 30 min job.