Shock - 5100 Series 4WD 83-97 Ford Ranger 4in R

The BILSTEIN 5100 Series 4WD shock absorber for 1983–97 Ford Ranger (rear, 4-inch) is a monotube damper engineered to handle the demands of lifted trucks and off-road terrain. This steel, zinc-plated rear shock delivers consistent performance across rough trails, deep ruts, and highway driving by maintaining precise damping control under varied load conditions. Built for vehicles running suspension lifts or increased ride heights, the 5100 Series provides the valving stability necessary to manage both compression and rebound forces without wallowing or excessive bounce.

BILSTEIN's monotube design separates the piston rod from the pressure chamber using a floating piston, eliminating aeration and heat buildup during extended use—critical for sustained off-road operation where shock temperatures climb significantly. The 4-inch stroke accommodates increased suspension articulation typical of lifted Ranger platforms, allowing full extension and compression travel without bottoming or topping out. Zinc plating on the steel housing provides rust resistance in corrosive environments, extending service life when exposed to moisture, salt spray, or harsh weather conditions common to truck ownership.

This rear shock suits Ranger owners pursuing mild to moderate lift installations, trail recovery work, or improved handling on uneven terrain. The 5100 Series functions as a direct replacement for worn OEM shocks on first-generation and second-generation compact trucks, restoring damping performance and ride control. Each unit is sold individually, so rear suspension upgrades require purchasing two shocks (one per side). Weighing 5.27 lbs and measuring 26.8 inches in overall length, it integrates seamlessly into factory mounting points without modification.