I replaced the drivers front window seal and now the window will not go up without major help. It's not lining up with in the seal correctly. I'm pretty sure that I screwed up something putting it in. Has anybody used seals from JC W. with success or it this part of the problem. Are the seal from LMC better? Maybe I'll check GM part direct for prices? Thanks Mike PS. Does anybody know the gm part numbers for the window channels?