Top Bearing WE14M124

My dryer develops a loud thumping noise as it heats up. After 10 minutes it is thumping at its loudest im sure this is a heat related problem because it doesn't thump if i run it on fluff which uses no heat this problem started after i replaced the top front bearing because the slides were worn off and the drum had started wearing into the bearing itself. I even put a new motor in it. The original problem was the dryer stop tumbling during heat cycles after about ten minutes(about the same time the thumping is at its worst) but it wasnt thumping originally i created that problem somehow after i replaced the bearing. It will automatically start tumbling and drying again after it cools down after about 5 minutes. This process goes on and on until it finally has the clothes dry after about a hour or so. My question is. What could i have done replacing the bearing that would make it thump during heatup(by the way i replaced the long felt peice too that goes around the bottom piece of the bearing. And 2nd im guessing that one of the 3 thermostats is faulty and thats why its kicking off when hot(never kicks off during non-heat fluff cycles) my understanding is that the thermisters only control turning the heat elements on and off.(is that correct?) so thermisters wont turn dryer off they will just cause heating problems when failing. I need advice on what parts i need advice on what i did to create this thumping noise. Thank you very much.

Clothes are getting caught between the drum and front panel. I replaced the felt gasket but the problem still exist. Any idea of what could be causing the problem?

I have changed the back bearing and the slides but dryer still can handle a very light load or it shuts down. It is very noisy. How can i be sure that changing the front bearing will fix it?