Gabriel 85729 FleetLine Heavy Duty Shock Absorber 1-5/8 inch bore with a bulged design provides increased fluid capacity for cooler operation Patented rod seal material significantly increases the life of the seal Custom blended HT fluid reduces friction and wear in extreme operating conditions Floating piston seal design self-compensates for wear and reduces force-velocity variability Plus all of the specialty features contained in the 85000 and 85300 Series Installation Specifications Compatibility Procedures Makes &amp; Models Features Recommendations Legacy Products Rugged, self-compensating piston seal for consistent damping ability and reduced fade throughout the shock life Multi-lip piston rod seal leads to longer product life 360<span class="a-text-bold"></span> end mounts provide superior structural strength Cold formed and arcwelded eye ring end mounts (most applications) for greater tensile strength Hydraulic extension stop provides unparalleled system durability and inhibits shocks from topping out and suspension from over-extending