Fabtech FTS810942 Dirt Logic 2.25 Rear Shock

A rear damper in a lifted heavy-duty truck has to match both the suspension travel and its mounting arrangement. Fabtech FTS810942 uses a stainless-steel Dirt Logic 2.25 body with a large billet piston and NitroSteel rod for the rear position of supported systems.

This part is a single shock, even when a Fabtech suspension kit specifies two for the rear axle. If replacing both sides, order the appropriate quantity and confirm that the front and rear systems, lift height and mounts are compatible.

Verified Specifications and Package

• One individual rear Dirt Logic 2.25 shock
• 2.25-inch stainless-steel body; 2.0-inch billet-aluminum piston
• 7/8-inch NitroSteel rod and polyurethane mounting ends
• Extended length 26.68 inches; collapsed length 17.15 inches; stroke 9.53 inches
• Non-reservoir configuration; no coil spring included

Intended Application

Used as two rear units in specified Fabtech four-inch lift kits for 2011–2019 GM 2500HD applications; exact configuration and Fabtech kit are required.

Fitment and Installation Restrictions

Not a universal GM replacement shock and not a pair. Check shock travel, axle position and Fabtech suspension hardware before ordering.

What Is Included

One rear shock absorber, not two.