1973 Blazer Window regulator and channel

[manfromeastvan]

Hey everybody, I need a little help on the Blazer I'm trying to fix up. I need to change the driver's side window regulator and the channel that connects the regulator and the glass. I'm having no trouble finding reproduction 1973 regulators, but nobody has the channel. Some people have told me I can use a 1974 regulator and channel, but most everything I've read says that won't work. Any help on this would be a lifesaver, thanks.