The Bilstein B8 5100 (Ride Height Adjustable) front shock is a 46mm monotube damper for 15-20 Ford F-150 trucks that run a front coil-over-style suspension. It is a direct alternative to a stock shock and to spacer-based leveling. Its adjustable spring seat lets you raise the front end in set steps on the factory springs, so you avoid separate spacers and can keep the factory spring rate. Confirm the exact lift range and your truck's drivetrain before ordering, because product details vary.
Ride height is set by choosing one of several snap-ring grooves in the shock body, which repositions the spring seat. Buyers searching for a 2015-2020 F-150 4WD front leveling shock, a B8 5100 ride-height-adjustable coilover shock, or a 46mm monotube F-150 front strut should check the part number against the truck's configuration. Owners on user forums commonly weigh this shock against other ride-height options when they want a firmer, more controlled front end than a budget replacement.
This is a shock-and-spring swap that reuses the truck's factory coil springs and mounting hardware, so it does not require new brackets. Set your ride height by moving the spring seat to the snap-ring groove you want before the shock goes in. Use the manufacturer's install sheet for torque specifications and the required tools, since those were not confirmed in this research. Raise the truck on a stable lift or jack stands, and support the front axle before you loosen any suspension fasteners.
