The part is located on the drive side flat floor slide-out, inside on both corners. The unit is black, plastic, J shape and 3” wide. I would guess to call it a skid or guide, used to raise and lower the floor. Trying to find a name, part number, or drawing. Would also like to know if this is an easy/hard DIY change out. Just a FYI the part broke off and took out both plastic sleeve/bearings in the gear box. Thanks for any help.