95 GMC Suburban rear window regulator?

I have a 95 GMC Suburban 1500 and I need a manual window regulator for the driver's side rear door. Cannot find one to save my life. Went to all the major parts stores and the one they want to order from Dorman is wrong (its for the front window) and when I called Dorman myself they do not make the regulator I need. Went to the dealership and they have a part number but no picture. Don't want to waste the money if I can't see what I'm buying. Only thing I have found is from lmctruck.com and lists part number 39-6400 as the closest thing I can get but its for the Tahoe/Yukon for $169.95. I've heard that the parts for these trucks are pretty interchangeable but want to be sure. No junk yards I have talked to have the part and have referred me to the surrounding 2 states and they don't have it either. Can't believe that this is such a hard to find part. Anyone have any ideas before I end up just drilling a hole through the support and screwing the darned thing shut?