I removed the windows and doors from the 66 SS yesterday & today. When I removed the regulator rollers from the channel at the base of each front window, the channel that the rollers runs in separated from the bottom of the window... it was rotted out. The windows are fine as are the plastic guides at each end of this channel..... is this piece reproduced?

I'm looking for the Passenger & Driver side window channels - The piece I'm talking about is the channel that 2 rollers of the window regulatorl in to raise and lower the window, they have plastic guides on each end that guide the window up & down. The glass is OK, this metal piece that is attached to the bottom of the window is shot.

Thanks for any help...