Maybe in your state!--I searched every local salvage yard and called many others,only the place I frequent the most actually had ONE Suburban with a diesel,and the owner of the yard didn't even remember it,he said "I doubt if there is any left,we scrapped all the square bodies last year"..."and I doubt we saved any 6,2's,we only had a few ever come in..(I bought the plow pump,pulleys and brackets off one Blazer they had for 40 bucks when I got my pickup in '03..it was still there up till last year too..
I found the Suburban lying on top of a wall of huge stones and it was basically trashed--had barn doors though,rear A/C,and I think a 6.5 turbo,looked like a '91, but all the ways to ID it were gone--no doors,radiator support was missing stickers and the windshield was smashed right where the VIN tag was..
..parts were missing off the turbo plumbing,which had peaked my interest for about one second,then said "screw that ,trying to put that on either of my trucks!"..
Then I saw there was no vacuum pump in the rear--found a belt driven one on the lower passenger side of the engine..I figured it was not useable in my truck,but later I read online the vacuum can would have fit my rear drive one..
They also had a V8 diesel in a truck box that I couldn't determine if it was a GM or what--it resembled a 6.2 but the intake was missing and the valley area was not the same as mine--rocker covers looked different too,might have been a 6.9 IHC or a 350 Olds diesel--it had a vacuum pump like mine though,and perhaps the "can" would have fit mine if not the whole thing--but they wanted 75 bucks for it--they dropped the price to 60 when I said I'd rather buy a new one with the 75 bucks,but I passed--it looked like it sat there 15 years and it was a good bet the diaphram in it was junk,just like mine..