I have an Lippert electric slide out that has been a pain from new. It is now extending unevenly. The drive side extends and seals tight but the other side lacks an inch or so to fully seal. I can hit that side with my shoulder and it will close a little but is still out more than the drive side. Both sides seem to retract tight. The slide also creaks, grones and jumps as it goes in and out. Is there an adjustment I can make to solve this.