PG01
Supporting Member
m6 x 1 and m8 x 1.25 both coarse threadDon't remember the threads, maybe Pete does. @Galante
It's those two J-Case fuses right in front of the studs. Not all the trucks are wired the same but in my manual they are 63 and 68. There are others like 6, 10 and 25 that power the controller, trailer back-up lights and trailer parking lights.