got myself some grooved disks and RST caliers to go on my xr3i.   my question is, the disks have gooves going in different directions. so which disk goes on which side?   does the left disk on the pic below go on the passenger side?  

hi guys i appear to be getting water in from my roof caused by a gap in the rubber seal at the passenger side. they actually look fine and have no rips or tears but appear to be smaller than the length of roof they need to cover and causing a leak onto the floor at the passenger side. any suggestions as to the best way to deal with them? also i keep getting drips in at the front where the rubbers meet they are firmly pressed against one another but starting to let drips in somehow as indicated i