it's a 3/8 wrench for both 2003 and 2004 caliper.
The 2004 Ford Expedition has 63 in. of front hip room.
The 2004 Ford Expedition has 39.7 in. of front head room.
The 2004 Ford Expedition has 63.4 in. of front shoulder room.
The 2004 Ford Expedition has 41.2 in. of front leg room.
The front track of the 2004 Ford Expedition is 5 ft. 7 in. (67 in.).
My 2003 Cavalier uses a 3/8 hex key. It probably should be the same.
Try 3/8 Allen key , or 15 mm wrench.
7MM
70
what size allen wrench do i need to change front brakes on a 2004 dodge grand caravan
On a 2004 Ford Expedition , 4x4 : The front differential has a tube ( hose ) coming off the top of the differential ( the biggest part of the case where the gears are )