KYB 344075 Shock Absorber - Front or Rear

KYB Excel-G Rear Shock Absorber

The KYB Excel-G 344075 is a nitrogen gas-charged, twin-tube suspension shock absorber built to restore original ride control, stability, and handling. It is an OE-style replacement for full-size GM truck and van applications, including Chevrolet G10, G20, G30 and GMC G1500, G2500, G3500 fitments.

KYB Excel-G shocks are assembled on KYB OE production lines using OE-quality components and calibrated to return the vehicle to its designed damping characteristics. For drivers and technicians servicing Chevrolet and GMC rear suspension systems, part number 344075 is a direct-fit solution focused on restoring factory performance rather than changing ride feel.

Key Features

• KYB recommended OEM replacement shock absorber
• Nitrogen gas-charged, twin-tube design
• Triple-lip fluid seal helps reduce oil and gas leakage
• Vehicle-specific, hand-assembled damping valves for controlled tire contact and steering response
• Strong strut body and bracket construction to help maintain alignment under load
• Dust cover included
• OE-style calibration for original ride control and handling

Product Line Details

The Excel-G line is KYB’s Original Equipment for the Aftermarket offering. It is built to match the vehicle’s original damping characteristics, making it a practical choice when replacing worn rear shocks on Chevrolet and GMC vans and trucks. Part number 344075 is designed for applications where restoring factory ride quality and suspension control is the goal.

Fitment

• Fits 1978-1995 Chevrolet G10, rear.
• Fits 1978-1995 Chevrolet G20, rear.
• Fits 1978-1995 Chevrolet G30, rear; Recommended OEM Replacement; Exc. Motorhome Chassis; Except Heavy Duty Chassis and w/o Dual Rear Wheels.
• Fits 1979-1995 GMC G1500, rear.
• Fits 1979-1995 GMC G2500, rear.
• Fits 1979-1995 GMC G3500, rear; Recommended OEM Replacement; Exc. Motorhome Chassis; Except Heavy Duty Chassis and w/o Dual Rear Wheels.
• Fits 1978 GMC G15, rear.
• Fits 1978 GMC G25, rear.
• Fits 1978 GMC G35, rear; Recommended OEM Replacement; Exc. Motorhome Chassis; Except Heavy Duty Chassis and w/o Dual Rear Wheels.
• Fits 1980-1984 Chevrolet K10, front; w/ Dual Front Shocks-inside shock.
• Fits 1980-1984 Chevrolet K10 Suburban, front; w/ Dual Front Shocks-inside shock.
• Fits 1980-1984 Chevrolet K20, front; w/ Dual Front Shocks-inside shock.
• Fits 1980-1984 Chevrolet K20 Suburban, front; w/ Dual Front Shocks-inside shock.
• Fits 1980-1984 Chevrolet K5 Blazer, front; w/ Dual Front Shocks-inside shock.
• Fits 1980-1984 GMC Jimmy, front; w/ Dual Front Shocks-inside shock.
• Fits 1980-1984 GMC K1500, front; w/ Dual Front Shocks-inside shock.
• Fits 1980-1984 GMC K1500 Suburban, front; w/ Dual Front Shocks-inside shock.
• Fits 1980-1984 GMC K2500, front; w/ Dual Front Shocks-inside shock.
• Fits 1980-1984 GMC K2500 Suburban, front; w/ Dual Front Shocks-inside shock.

What It Helps Address

• Excessive bouncing after bumps or dips
• Reduced stability during lane changes and cornering
• Poor braking control caused by worn suspension damping
• Uneven tire contact from weak rear or front shock performance
• Suspension noise or fluid leakage from an aging shock absorber

Installation Notes

Verify the vehicle’s suspension configuration before ordering, especially on Chevrolet and GMC truck and van applications with chassis-specific notes. Rear applications may require replacement of the suspension strut and coil spring assembly according to the manufacturer’s instructions. Front applications listed here are for models with dual front shocks and use the inside shock position.

Compressed length is 12.8 in., extended length is 21.34 in., and stroke length is 8.54 in. Upper and lower mount type is E2 (12.8 x 41.3). Confirm mounting dimensions and position before installation.

Quality Assurance

KYB is a major OE shock and strut supplier, and the Excel-G line is produced on the same KYB OE assembly lines using OE-quality components. This part cross-references Monroe Shocks & Struts (e.g., 37091) for the same application.