KYB

Gas-A-Just Monotube Shocks

KG5404
$65.99

In Stock Estimated Delivery in 3-6 Business Days
KYB

Gas-A-Just Monotube Shocks

KG5404
$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 NumberLift/LoweredPositionItemQuantityExtended LengthCompressed LengthTravelTop MountBottom Mount
KG5404FactoryFrontShock Absorber115.79"10.08"5.71"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
1982CheckerMarathonFront
1981CheckerMarathonFront
1980CheckerMarathonFront
1979CheckerMarathonFront
1978CheckerMarathonFront
1977CheckerMarathonFront
1976CheckerMarathonFront
1975CheckerMarathonFront
1974CheckerMarathonFront
1980DodgeB300Front
1979DodgeB300Front
1978DodgeB300Front
1977DodgeB300Front
1976DodgeB300Front
1975DodgeB300Front
1974DodgeB300 VanFront
1973DodgeB300 VanFront
1972DodgeB300 VanFront
1971DodgeB300 VanFront
1994DodgeB350Front
1993DodgeB350Front
1992DodgeB350Front
1991DodgeB350Front
1990DodgeB350Front
1989DodgeB350Front
1988DodgeB350Front
1987DodgeB350Front
1986DodgeB350Front
1985DodgeB350Front
1984DodgeB350Front
1983DodgeB350Front
1982DodgeB350Front
1981DodgeB350Front
1980DodgeD200RWDFront
1979DodgeD200RWDFront
1978DodgeD200RWDFront
1977DodgeD200RWDFront
1976DodgeD200RWDFront
1975DodgeD200RWDFront
1974DodgeD200 PickupRWDFront
1973DodgeD200 PickupRWDFront
1972DodgeD200 PickupRWDFront
1993DodgeD250RWDFront
1992DodgeD250RWDFront
1991DodgeD250RWDFront
1990DodgeD250RWDFront
1989DodgeD250RWDFront
1988DodgeD250RWDFront
1987DodgeD250RWDFront
1986DodgeD250RWDFront
1985DodgeD250RWDFront
1984DodgeD250RWDFront
1983DodgeD250RWDFront
1982DodgeD250RWDFront
1981DodgeD250RWDFront
1980DodgeD300RWDFront
1979DodgeD300RWDFront
1978DodgeD300RWDFront
1977DodgeD300RWDFront
1976DodgeD300RWDFront
1975DodgeD300RWDFront
1974DodgeD300 PickupRWDFront
1973DodgeD300 PickupRWDFront
1972DodgeD300 PickupRWDFront
1993DodgeD350RWDFront
1992DodgeD350RWDFront
1991DodgeD350RWDFront
1990DodgeD350RWDFront
1989DodgeD350RWDFront
1988DodgeD350RWDFront
1987DodgeD350RWDFront
1986DodgeD350RWDFront
1985DodgeD350RWDFront
1984DodgeD350RWDFront
1983DodgeD350RWDFront
1982DodgeD350RWDFront
1981DodgeD350RWDFront
1981DodgeD400Front
1980DodgeD400Front
1979DodgeD400Front
1978DodgeD400Front
1980PlymouthPB300Front
1979PlymouthPB300Front
1978PlymouthPB300Front
1977PlymouthPB300Front
1976PlymouthPB300Front
1975PlymouthPB300Front
1974PlymouthPB300 VanFront
1983PlymouthPB350Front
1982PlymouthPB350Front
1981PlymouthPB350Front

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 NumberLift/LoweredPositionItemQuantityExtended LengthCompressed LengthTravelTop MountBottom Mount
KG5404FactoryFrontShock Absorber115.79"10.08"5.71"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
1982CheckerMarathonFront
1981CheckerMarathonFront
1980CheckerMarathonFront
1979CheckerMarathonFront
1978CheckerMarathonFront
1977CheckerMarathonFront
1976CheckerMarathonFront
1975CheckerMarathonFront
1974CheckerMarathonFront
1980DodgeB300Front
1979DodgeB300Front
1978DodgeB300Front
1977DodgeB300Front
1976DodgeB300Front
1975DodgeB300Front
1974DodgeB300 VanFront
1973DodgeB300 VanFront
1972DodgeB300 VanFront
1971DodgeB300 VanFront
1994DodgeB350Front
1993DodgeB350Front
1992DodgeB350Front
1991DodgeB350Front
1990DodgeB350Front
1989DodgeB350Front
1988DodgeB350Front
1987DodgeB350Front
1986DodgeB350Front
1985DodgeB350Front
1984DodgeB350Front
1983DodgeB350Front
1982DodgeB350Front
1981DodgeB350Front
1980DodgeD200RWDFront
1979DodgeD200RWDFront
1978DodgeD200RWDFront
1977DodgeD200RWDFront
1976DodgeD200RWDFront
1975DodgeD200RWDFront
1974DodgeD200 PickupRWDFront
1973DodgeD200 PickupRWDFront
1972DodgeD200 PickupRWDFront
1993DodgeD250RWDFront
1992DodgeD250RWDFront
1991DodgeD250RWDFront
1990DodgeD250RWDFront
1989DodgeD250RWDFront
1988DodgeD250RWDFront
1987DodgeD250RWDFront
1986DodgeD250RWDFront
1985DodgeD250RWDFront
1984DodgeD250RWDFront
1983DodgeD250RWDFront
1982DodgeD250RWDFront
1981DodgeD250RWDFront
1980DodgeD300RWDFront
1979DodgeD300RWDFront
1978DodgeD300RWDFront
1977DodgeD300RWDFront
1976DodgeD300RWDFront
1975DodgeD300RWDFront
1974DodgeD300 PickupRWDFront
1973DodgeD300 PickupRWDFront
1972DodgeD300 PickupRWDFront
1993DodgeD350RWDFront
1992DodgeD350RWDFront
1991DodgeD350RWDFront
1990DodgeD350RWDFront
1989DodgeD350RWDFront
1988DodgeD350RWDFront
1987DodgeD350RWDFront
1986DodgeD350RWDFront
1985DodgeD350RWDFront
1984DodgeD350RWDFront
1983DodgeD350RWDFront
1982DodgeD350RWDFront
1981DodgeD350RWDFront
1981DodgeD400Front
1980DodgeD400Front
1979DodgeD400Front
1978DodgeD400Front
1980PlymouthPB300Front
1979PlymouthPB300Front
1978PlymouthPB300Front
1977PlymouthPB300Front
1976PlymouthPB300Front
1975PlymouthPB300Front
1974PlymouthPB300 VanFront
1983PlymouthPB350Front
1982PlymouthPB350Front
1981PlymouthPB350Front
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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