Got an 86 Lebaron wagon and when the front driver's side window is raised, the glass keeps sliding around to the outside of the felt channel in the door frame. There's a lot of play in the window, especially when it's lowered and I think this is due to wear on this white bushing that's worn out on the metal track (near the latch side of the door). Anyone know where I can find a part number for this piece? Also, I'll need the black plastic channel in the front of the door (on the hinge side) that holds the felt channel in. Thanks in advance