I struggled with mine also, but I put the rubber in the opening then fed in the glass with lots of soapy lubricant, I taped up the area around to keep from scratching and used several plastic putty knives. I actually had more trouble with the rear window than the corners, in fact I changed from Chevyduty rubber to Steele to get the rear window in, as the Steele was softer and less bulky. You can see here.
http://community.webshots.com/user/zeker6
Zeke


The Amish Connection
51 Chevy 1/2 ton 5 window,Vortec hotrod, no horse