KYB Suspension Shock Absorber P/N:KG5558
Firm up the front end of your classic pony car with the KYB Gas-a-just Shock Absorber KG4504, a high-pressure monotube gas shock that drops in as a front-position replacement for the 1971-1973 Ford Mustang and the 1971-1973 Mercury Cougar. This KYB shock absorber has components and valving designed specifically for Mustangs and Cougars, so it's tuned to these applications rather than a generic fit.
KYB notes this Gas-a-just also helps keep electronic safety systems performing as designed, since those systems depend on the suspension working as intended.
Interchange: 81491 · 5823
This part cross-references / interchanges with the following part numbers:
What vehicles does the KYB KG4504 fit?
It's a front-position gas shock for the 1971-1973 Ford Mustang and 1971-1973 Mercury Cougar. Check the Buyer's Guide tab to confirm the fit for your exact vehicle.
What makes this a KYB gas shock absorber?
It's a high-pressure monotube design that separates the nitrogen gas from the oil, which helps provide fade-free operation and instant response compared to a traditional twin-tube shock.
How much damping does it add over stock?
KYB states the Gas-a-just adds up to 25% more damping performance over original-equipment shocks, with valving designed specifically for Mustangs and Cougars.
Should I replace both front shocks at once?
This listing is for one shock. Replacing both front shocks together as a matched pair is recommended so the front suspension responds evenly side to side.
How do I know if my shock needs replacing?
Signs a shock may need replacing include fluid leaking from the body, excessive bouncing, poor ride control, or uneven tire wear. Diagnose the cause before ordering.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.