KYB KG3198 Gas-A-Just Rear Monotube Shock for 1960-80 Triumph Herald/Spitfire/GT

Vehicle Fitment

• 1960-1970 Triumph Herald (all trims, RWD) - rear axle
• 1963-1980 Triumph Spitfire (all trims, RWD) - rear axle
• 1967-1973 Triumph GT6 (all trims, RWD) - rear axle

Features

• Gas-A-Just high-pressure monop-tube design for improved responsiveness
• Seamless steel cylinder construction enhances durability and reduces leakage
• Triple-chrome-plated piston rod for corrosion resistance and long life
• Valving tuned for historic British sports-cars - firmer ride yet controlled handling
• Direct rear axle replacement - retains factory ride height and geometry
• Firmer damping to reduce body roll and improve stability during spirited driving
• Ideal upgrade for older RWD classic cars where original twin-tube shocks may be worn
• Backed by KYB's lifetime limited warranty on gas shock absorbers for personal-use vehicles

Specifications

• Part Number: KG3198
• Line: Gas-A-Just monotube shock absorber
• Position: Rear axle, single unit
• Extended length: 13.03 in (330.96 mm) - approximate
• Compressed length: 9.72 in (246.89 mm) - approximate
• Stroke length: 3.31 in (84.07 mm) - approximate
• Mounting style: Eyelet / Eyelet both ends
• Ride-height change: 0" (factory height retained for listed vehicles)

Included Components

• 1x KYB KG3198 Rear Shock Absorber (single unit)
• (Installation hardware, bushings and washers may be reused from original unless otherwise specified by seller)

Product Description

The KYB KG3198 Gas-A-Just rear shock is designed for classic British sports-cars including the 1960-70 Triumph Herald, 1963-80 Triumph Spitfire and 1967-73 Triumph GT6. It replaces the factory rear shocks with a performance-oriented monotube design, delivering more consistent damping, better handling and improved stability compared to older twin-tube shocks.

Thanks to its high-pressure nitrogen gas chamber and monotube architecture, this shock reduces aeration and promotes sharper response when driving. For owners restoring or upgrading these vehicles, the KG3198 provides a meaningful handling upgrade while retaining the original ride height and mounting geometry. Simple installation utilising the original eyelet mounts makes it a viable direct replacement.

Fitment is confirmed for the vehicles listed above. Coverage beyond 1980 or for heavily modified or off-road variants is unconfirmed at time of listing. Always verify your vehicle's build-date, rear-axle configuration and suspension condition before purchase.