375694-S2 Special set screw for the rear door guide. This one is shorter than the two that install in the vent window frame and front door glass channel. This set screw has a 5/32" hex head with 5/16" NC threads, and is 1-9/16 inches in overall length. This set screw also has a ¾ inch diameter shoulder. Sets and holds your door glass angle to allow a proper seal. Three set screws work in conjunction for each door glass and vent window combination. See your shop manual for actual procedure.
See also 378696-S for the vent window and front door channel set screws. We believe that this screw was superseded by the one used on the wing window. We mostly find the larger set screw on the rear window channels. See related items.
Replaces Ford part number 375694-S2.