Treadmile, lifestyler 8.0 model #: 831.297250 There is a sleeve over the front roller that does not show on the exploded drawing and not on the part list. It is a ruber/silicon/plastic (I am not sure, it is a yellow thin sleeve about 1/16 thick) and I need this part. When I open the treadmile I found this sleeve on the front roler but it disintegrate almost completely. Where can I get this sleeve? and what is the part number? Thank you A. Shmargad ashmargad@yahoo.com 408-313-5853