
Originally Posted by
happygu
There are flaps of rubber, which don't even cover the holes behind the front kick panels, which will also let water in if you sit too long. Door seals themselves are generally pretty good, as there are double seals for the most part.
I have never done any extra sealing, and I have never had any water in the cab - as long as you keep moving, and have the cab pressurized with the fan blowing in air it just doesn't happen.
Door latches can be tightened a little by undoing the 4 screws that hold the latch receiver plate to the door pillars, so they are loose but still holding the latch in place, and then push the door closed - put a little extra pressure on it, and then lift the handle to release .... then retighten and carefully check that the door opens and closes nicely with the latch in its new position. You can also mark around it with a non- permanent marker to check to see if it has moved at all.