Gabriel G64121 Ultra Truck Rear Shock Absorber - Smooth Ride

Our review of the Gabriel G64121 Ultra Truck rear shock absorber finds it best suited for owners of heavy-duty Chevrolet, GMC, and Ram trucks who want a direct OE-style replacement that improves ride comfort and control. The single biggest reason to buy is the unit's premium damping technology with Infinitely Variable Damping, which delivers noticeably smoother handling on rough roads while remaining a simple bolt-on replacement for the rear of 2500 and 3500 series trucks.

Key Features

• Compatibility: Built to fit a wide range of 2011-2024 Chevrolet Silverado and GMC Sierra 2500/3500 series and 2020-2024 Ram 3500 trucks for straightforward replacement.
• Premium damping technology: G-Force technology with Infinitely Variable Damping provides on-demand control to smooth out bumps and reduce dwell on rough surfaces.
• Durable construction: Precision engineered twin tube design and a super finished chromed piston rod improve longevity under normal driving conditions.
• Easy installation: Simple bolt-on installation lets a mechanically inclined owner swap the old shock for this unit with common tools and basic garage space.
• Exact fit mounts: Upper and lower mount codes ES34 ensure the shock matches original mounting points for a secure, rattle-free fit.

Who It's For

The Gabriel G64121 is aimed at owners of heavy-duty light trucks and work trucks - specifically those who drive 2011-2018 Chevrolet Silverado 2500/3500, 2011-2024 Silverado 2500 HD/3500 HD, 2011-2024 GMC Sierra 2500 HD/3500 HD, or 2020-2024 Ram 3500 models - who want a reliable OE replacement that improves ride quality without changing vehicle geometry. It fits drivers who prioritize durability and predictable handling on mixed road surfaces.

Those seeking aftermarket performance shocks tuned for aggressive off-road use or custom lift setups should look elsewhere, since this model is engineered as a premium OE replacement focused on comfort and durability rather than extreme off-road travel or race-oriented damping.

Pros & Cons

Pros

• Provides improved ride quality and control compared with many worn stock units.
• Easy bolt-on installation with matching upper and lower mount codes for proper fit.
• Durable twin tube design and chromed piston rod for extended service life under normal driving.
• Good value for owners replacing a single rear shock or matching an OE spec set.

Cons

• Some owners report the shock can feel firmer than expected, so it may not suit drivers wanting a very soft ride.
• This is an OE-style replacement, not a specialized performance or heavy load upgrade for extreme towing or lifted trucks.

Specifications

Our Verdict

The Gabriel G64121 Ultra Truck rear shock is a sensible purchase for Silverado, Sierra, and Ram owners who need a dependable OE-style replacement that improves handling and comfort without complexity. It delivers solid damping performance, durable construction, and simple installation, making it good value for daily drivers and work trucks that operate under normal conditions.

Frequently Asked Questions

Will this fit my Silverado 2500 HD from 2013?
Yes, the G64121 is listed compatible with 2011-2024 Silverado 2500 HD models and matches OE mounting points.

Is installation difficult for a single owner?
Installation is a simple bolt-on process for most mechanically competent owners using common tools and proper safety support.

Are these shocks designed for heavy towing or lifted trucks?
No, these are premium OE replacement shocks focused on ride comfort and durability rather than extreme towing loads or lifted off-road setups.