Suggest you remove the plastic fuel filter and replace it with a metal cased one...the plastic ones do not withstand the engine bay heat for too long....
Also, the filter should really be before the pump where there is zero pressure...
not in a pressure line as it is currently installed.
And...those spring style clamps on the filter will fail eventually...suggest screw type ones....
Be safe...
Re e brake locked up...remove the primary e brake cable connectors and lube up the cables going to the rear drums....these cables lock up really easily when a truck sits...