Hi I have come to what I think is the answer for the truck cab I have. And based on photos of a 31 & 32 chevy truck that I seen on ebay,it appears to be one of the "fixed-or-repaired-daily" types! Take a look at ebay numbers 2486991280 (32 chevy,) 2486930811 (31 chevy). What I have is a rounded shaped rear window,chevy is squared.The lower part of the other windsheild frame is round,chevy is not,also the area around the door lock area is very different,the door window openings on chevy are squared and the other is rounded.If I am wrong let me know .Thanks to all for their help. Miller123