F-150 4x4 Transfer Case & Front Differential Fluid Guide

The F-150's 4x4 system relies on a transfer case and a front differential, each with its own fluid spec. Neglecting either leads to whine, shudder engaging 4WD, or accelerated wear on the front axle shafts and CV joints.

Any truck that sees water crossings pushes the same moisture exposure onto rotors that it does onto diff housings. GEOMET-coated rotors resist the surface rust that untreated OEM rotors develop after repeated off-road use.

Learn more in our F-150 Raptor brake kit guide.