door seal?????
 

wonderful day here in the rain state( oregon ) rained about a inch or more today. opened my door and we have standing water on the floorboard on drivers side. anyone else have this problem?

had a '99 and the seal around my door was torn at it used to drip pretty good....never standing water though.

LMC truck sells the whole seal and the window seals.

Or it could be from the outside light on the back of the cab....known problem

x2 had the third brake light leak also.