84K10 Sliding Rear Window Issue **HELP/ADVICE**

[realsales87]

Hi Everyone,
I have a 1984 K10 with a factory sliding rear window. I had the truck painted and removed the rear sliding window. The gasket was also shot. So I decided to buy a new rear sliding window from LMC (a CRLawrence window came). I also ordered the gasket from LMC. It stated that "rear window rubber does not fit trucks with factor sliding windows." I thought this meant the gasket wouldn't fit MY original GM sliding rear window but figured it wouldn't be an issue because I was purchasing an aftermarket slider.

Issue: Window and rubber came in the mail, installed on my truck and it is was soooo tight that I couldn't move the rear sliding window at all. I called CRLawrence and they recommended I order their gasket which I did. I just installed it and again, soooo tight I cannot open or close the rear slider. Has anyone had this issue? Is the K10 with factory sliding window rear window opening the same as the C10 rear window opening? HELP, I've put this window in and out 3 or 4 times now and I'm not sure what to do here.

Thank you in advance.