A buddy has a 69 GTO with tinted glass, but his passenger door glass has been changed at some point and is clear.

I've warned him about LOF vs DCL tinted glass, that there may be a slight difference in the tint.

I've also guessed that Chevelle, Skylark & Cutlass door glass would be the same as the GTO.

Can anyone comment on the interchange from other GM divisions?  My hope is that 68-72 A-body door glass is the same.

For laughs, I called Crystal Glass, the 69 GTO & Chevelle shared the same part #, with 70 Chevelle being a different#, so not sure what that means.