2001~2002 Ford ExplorerSportTrac's have stock Front Disc Brakes & Rear Drum Brakes, as is this vehicle,
& then later 2003~2011 Ford ExplorerSportTrac's have stock Disc Brakes both on the Front & on the Rear.
Considering its HigherThanOE BoilingPoint, Compatibility, Availability & LowCost, DOT4 Fluid is preferred.
BrakeFluid per OE specifications in the OwnersGuide is a GlycolEtherBased type DOT3\BoilingPoint=401f;
DOT4\BoilingPoint=446f or DOT5.1\BoilingPoint=500f also may be used\mixed. Beware of SiliconeBased type DOT5; it is NOT compatible & can NOT be used\mixed with GlycolEtherBased type DOT3\4\5.1 Fluid.
Size & Torq specs for the Brake bolts are as follows:
- FrontDisc MtngBolts 2ea \ ?m???oDia~?m???Thrd*?m???Long*0m015HxHd \ 85.00pf=115.2nmTorq
- FrontDisc SlideBolts 2ea \ ?m???oDia~?m???Thrd*?m???Long*0m013HxHd \ 24.00pf=33.54nmTorq
When doing routine Brake maintenance (replacing Pads\Rotors\Drums...) is a convenient time to carefully remove+inspect the ABS\Speed Sensor on each of the HubBearings, & push AxleGrease (NLGI#2\GC-LB Rated, Lucas#Red+Tacky Or Equal) into each of those SensorHoles, then reinstall+retighten each Sensor.
Links To Related Info
Thanks go to the brave souls who've preceded me in similar adventures & freely shared their experience:
- https://youtu.be/J-9HS4w70eU?t=17 BrakeFore.Disc Repair
- https://www.ranger-forums.com/drivetrain-tech-37/rear-brake-drum-size-135609 BrakeRear.Drum Diam9"\10"?
- https://web.archive.org/web/20170108212730if_/http://www.ford-trucks.com/forums/743915-rear-drum-brake-diagram.html BrakeRear.Drum
- https://youtu.be/rRV1uz62DFc?t=17 BrakeRear.Drum Repair
- https://web.archive.org/web/20210423183630if_/https://sporttrac.org/threads/drum-brakes.122897 BrakeRear.Drum RepairTubing