I've got an 89 and the windows are killing me. They have never worked right since I bought the truck so I have bought new window tracks from LMC. They still do exactly like they did before. They roll up OK but when you roll them down both of them dive forward to the point of pulling the black plastic clips right out of the track. If I put my hand on the back corner and lightly push down as I roll it down it will roll down OK. I have greased the regulators lubed the new window tracks with spray graphite and tweaked channels and can't make them work. PLEASE HELP!