There was a new GM crew cab still in the crate for sale on ebay for $3000 last week. Late last week there were no bids and I'm sure it did not sell. Search in Parts for 198* chev* cab. It might have been relisted.
BTW, your post say 1973 to 1990, will a 1988 to 1990 cab fit on a 1973 to 1987 chassis? I'm not aware that it will.
Also, I have a 1979 crew cab dually that I'm am dismantling. Its a California truck, but contrary to popular belief they rust too. This was 454/400 2wd truck. Its lowered 3". The cab floors are rusty but I have the patch panels to fix it. The doors are also rusty, one is missing. I have two front door shells that will fit. Let me know if you'd be interested. I can send pics. Email me at
videos@bright.net.
Good luck.
ric