KYB

Gas-A-Just Monotube Shocks

KG4550
$65.99

In Stock Estimated Delivery in 3-6 Business Days
KYB

Gas-A-Just Monotube Shocks

KG4550
$65.99

In Stock Estimated Delivery in 3-6 Business Days
Authorized dealer
Free shipping on orders above $175 within the lower 48 United States
Brand new parts with warranty coverage
Free 30-day return and exchange on qualifying orders
Got Questions?
Our experts are here to help!
Part Numbers & Details
Package Contains 1 Shock
You'll be getting one shock absorber.
KYB Lifetime Warranty
Manufacturer limited lifetime warranty protects against defects and premature failure.
Factory Hardware for Installation
All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation. Shock boots sold separately.
Product Highlights
Factory Upgrade for improved handling
Specifications
Part NumberItemQuantityExtended LengthCompressed LengthTravelTop MountBottom Mount
KG4550Shock Absorber113.54"9.25"4.29"STEMEYELET
Product Details

The KYB Gas-A-Just shock absorber increases vehicle stability, handling, and control through a monotube shock design. A monotube shock absorber is more responsive to the road and automatically adjusts to driving conditions. The Gas-A-Just shock will give a slightly firmer ride and provide additional control, limiting body roll and nose dive.

Compatibility List
YearMakeModelDrivePosition
1985AvantiIIFront
1984AvantiIIFront
1983AvantiIIFront
1982AvantiIIFront
1981AvantiIIFront
1980AvantiIIFront
1979AvantiIIFront
1978AvantiIIFront
1977AvantiIIFront
1976AvantiIIFront
1975AvantiIIFront
1974AvantiIIFront
1973AvantiIIFront
1972AvantiIIFront
1971AvantiIIFront
1970AvantiIIFront
1969AvantiIIFront
1968AvantiIIFront
1967AvantiIIFront
1966AvantiIIFront
1965AvantiIIFront
1964ChevroletBel AirFront
1963ChevroletBel AirFront
1962ChevroletBel AirFront
1961ChevroletBel AirFront
1960ChevroletBel AirFront
1959ChevroletBel AirFront
1958ChevroletBel AirFront
1957ChevroletBel AirFront
1956ChevroletBel AirFront
1955ChevroletBel AirFront
1964ChevroletBiscayneFront
1963ChevroletBiscayneFront
1962ChevroletBiscayneFront
1961ChevroletBiscayneFront
1960ChevroletBiscayneFront
1959ChevroletBiscayneFront
1958ChevroletBiscayneFront
1964ChevroletCorvairFront
1963ChevroletCorvairFront
1962ChevroletCorvairFront
1961ChevroletCorvairFront
1960ChevroletCorvairFront
1982ChevroletCorvetteFront
1981ChevroletCorvetteFront
1980ChevroletCorvetteFront
1979ChevroletCorvetteFront
1978ChevroletCorvetteFront
1977ChevroletCorvetteFront
1976ChevroletCorvetteFront
1975ChevroletCorvetteFront
1974ChevroletCorvetteFront
1973ChevroletCorvetteFront
1972ChevroletCorvetteFront
1971ChevroletCorvetteFront
1970ChevroletCorvetteFront
1969ChevroletCorvetteFront
1968ChevroletCorvetteFront
1967ChevroletCorvetteFront
1966ChevroletCorvetteFront
1965ChevroletCorvetteFront
1964ChevroletCorvetteFront
1963ChevroletCorvetteFront
1964ChevroletImpalaFront
1963ChevroletImpalaFront
1962ChevroletImpalaFront
1961ChevroletImpalaFront
1960ChevroletImpalaFront
1959ChevroletImpalaFront
1962PontiacBonnevilleFront
1961PontiacBonnevilleFront
1960PontiacBonnevilleFront
1959PontiacBonnevilleFront
1958PontiacBonnevilleFront
1962PontiacCatalinaFront
1961PontiacCatalinaFront
1960PontiacCatalinaFront
1959PontiacCatalinaFront
1958PontiacCatalinaFront
1974Volvo142Front
1973Volvo142Front
1972Volvo142Front
1971Volvo142Front
1970Volvo142Front
1969Volvo142Front
1968Volvo142Front
1967Volvo142Front
1974Volvo144Front
1973Volvo144Front
1972Volvo144Front
1971Volvo144Front
1970Volvo144Front
1969Volvo144Front
1968Volvo144Front
1967Volvo144Front
1974Volvo145Front
1973Volvo145Front
1972Volvo145Front
1971Volvo145Front
1970Volvo145Front
1969Volvo145Front
1968Volvo145Front
1975Volvo164Front
1974Volvo164Front
1973Volvo164Front
1972Volvo164Front
1971Volvo164Front
1970Volvo164Front
1969Volvo164Front

Shock Surplus handles KYB's warranty claims; if you encounter a product defect please submit a warranty claim.

View KYB Warranty Information

For more information: View the Shock Surplus Warranty Policy.

Shipping Info

Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.

  • Applies to items like axles, leaf springs, and long-travel kits.
  • No international shipping on freight items — only to U.S.-based freight forwarders.
  • Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.

Contact us for an international shipping quote.

Returns & Exchanges

30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.

  • No restocking fees for exchanges or gift card credit.
  • 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
  • Installed, damaged, or dirty parts cannot be returned.
  • Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.

Need help? Use Live Chat or Email Us anytime.

Start a Return or Exchange

Return Shipping Responsibility

CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.

  • Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
  • Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.

  • Under 50 lbs: Discounted carrier rate
  • Over 50 lbs: Discounted carrier rate + $25 oversize fee

Refunds

Refunds are issued within 5–7 business days of receiving your return.

  • Funds typically post to your account in 1–3 business days depending on your payment method.
  • There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
  • You will receive an email once your refund is processed.

International Orders

  • All international orders are final sale.
  • Returns via freight forwarders only accepted if the product hasn’t left the U.S.
  • Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
  • We are not responsible for goods once exported outside the U.S.

Product Details

Whether you want to upgrade, add a reservoir, or find something more affordable, contact us with any questions!

Part Numbers & Details

View full product specifications

Close specs
Part Numbers & Details
Package Contains 1 Shock
You'll be getting one shock absorber.
KYB Lifetime Warranty
Manufacturer limited lifetime warranty protects against defects and premature failure.
Factory Hardware for Installation
All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation. Shock boots sold separately.
Product Highlights
Factory Upgrade for improved handling
Specifications
Part NumberItemQuantityExtended LengthCompressed LengthTravelTop MountBottom Mount
KG4550Shock Absorber113.54"9.25"4.29"STEMEYELET
Product Details

The KYB Gas-A-Just shock absorber increases vehicle stability, handling, and control through a monotube shock design. A monotube shock absorber is more responsive to the road and automatically adjusts to driving conditions. The Gas-A-Just shock will give a slightly firmer ride and provide additional control, limiting body roll and nose dive.

Compatibility List
YearMakeModelDrivePosition
1985AvantiIIFront
1984AvantiIIFront
1983AvantiIIFront
1982AvantiIIFront
1981AvantiIIFront
1980AvantiIIFront
1979AvantiIIFront
1978AvantiIIFront
1977AvantiIIFront
1976AvantiIIFront
1975AvantiIIFront
1974AvantiIIFront
1973AvantiIIFront
1972AvantiIIFront
1971AvantiIIFront
1970AvantiIIFront
1969AvantiIIFront
1968AvantiIIFront
1967AvantiIIFront
1966AvantiIIFront
1965AvantiIIFront
1964ChevroletBel AirFront
1963ChevroletBel AirFront
1962ChevroletBel AirFront
1961ChevroletBel AirFront
1960ChevroletBel AirFront
1959ChevroletBel AirFront
1958ChevroletBel AirFront
1957ChevroletBel AirFront
1956ChevroletBel AirFront
1955ChevroletBel AirFront
1964ChevroletBiscayneFront
1963ChevroletBiscayneFront
1962ChevroletBiscayneFront
1961ChevroletBiscayneFront
1960ChevroletBiscayneFront
1959ChevroletBiscayneFront
1958ChevroletBiscayneFront
1964ChevroletCorvairFront
1963ChevroletCorvairFront
1962ChevroletCorvairFront
1961ChevroletCorvairFront
1960ChevroletCorvairFront
1982ChevroletCorvetteFront
1981ChevroletCorvetteFront
1980ChevroletCorvetteFront
1979ChevroletCorvetteFront
1978ChevroletCorvetteFront
1977ChevroletCorvetteFront
1976ChevroletCorvetteFront
1975ChevroletCorvetteFront
1974ChevroletCorvetteFront
1973ChevroletCorvetteFront
1972ChevroletCorvetteFront
1971ChevroletCorvetteFront
1970ChevroletCorvetteFront
1969ChevroletCorvetteFront
1968ChevroletCorvetteFront
1967ChevroletCorvetteFront
1966ChevroletCorvetteFront
1965ChevroletCorvetteFront
1964ChevroletCorvetteFront
1963ChevroletCorvetteFront
1964ChevroletImpalaFront
1963ChevroletImpalaFront
1962ChevroletImpalaFront
1961ChevroletImpalaFront
1960ChevroletImpalaFront
1959ChevroletImpalaFront
1962PontiacBonnevilleFront
1961PontiacBonnevilleFront
1960PontiacBonnevilleFront
1959PontiacBonnevilleFront
1958PontiacBonnevilleFront
1962PontiacCatalinaFront
1961PontiacCatalinaFront
1960PontiacCatalinaFront
1959PontiacCatalinaFront
1958PontiacCatalinaFront
1974Volvo142Front
1973Volvo142Front
1972Volvo142Front
1971Volvo142Front
1970Volvo142Front
1969Volvo142Front
1968Volvo142Front
1967Volvo142Front
1974Volvo144Front
1973Volvo144Front
1972Volvo144Front
1971Volvo144Front
1970Volvo144Front
1969Volvo144Front
1968Volvo144Front
1967Volvo144Front
1974Volvo145Front
1973Volvo145Front
1972Volvo145Front
1971Volvo145Front
1970Volvo145Front
1969Volvo145Front
1968Volvo145Front
1975Volvo164Front
1974Volvo164Front
1973Volvo164Front
1972Volvo164Front
1971Volvo164Front
1970Volvo164Front
1969Volvo164Front
Warranty

View warranty coverage

Close specs

Shock Surplus handles KYB's warranty claims; if you encounter a product defect please submit a warranty claim.

View KYB Warranty Information

For more information: View the Shock Surplus Warranty Policy.

Shipping & Returns

Free shipping within the lower 48 United States

Close specs

Shipping Info

Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.

  • Applies to items like axles, leaf springs, and long-travel kits.
  • No international shipping on freight items — only to U.S.-based freight forwarders.
  • Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.

Contact us for an international shipping quote.

Returns & Exchanges

30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.

  • No restocking fees for exchanges or gift card credit.
  • 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
  • Installed, damaged, or dirty parts cannot be returned.
  • Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.

Need help? Use Live Chat or Email Us anytime.

Start a Return or Exchange

Return Shipping Responsibility

CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.

  • Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
  • Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.

  • Under 50 lbs: Discounted carrier rate
  • Over 50 lbs: Discounted carrier rate + $25 oversize fee

Refunds

Refunds are issued within 5–7 business days of receiving your return.

  • Funds typically post to your account in 1–3 business days depending on your payment method.
  • There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
  • You will receive an email once your refund is processed.

International Orders

  • All international orders are final sale.
  • Returns via freight forwarders only accepted if the product hasn’t left the U.S.
  • Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
  • We are not responsible for goods once exported outside the U.S.

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