My very first post, other than the welcome post, & I think it's a good one, lol. I just got a '68 Impala & the channel that the back glass lays in is rusted out very bad. I would like to cut it out all the way around & mig a new/good used channel back in, But, I don't have a clue as to where I can get a new channel or a used one. I don't have a metal brake to bend sheet metal & even if I did I would still have the four corners to find. I think I can cut it about a 1/4" back all the way around & have good solid metal to weld to. The feller I got the car from said I could get some L channel at Lowes to fix it with but if somebody sells a patch panel I would much rather go that route. I searched the internet for three hours last night & found nothing other than they're bad to rust in this spot.