QA1 Coilover Adjustable Spring Lowering Kit - HK42-GMF1 ⚠ Check if this part fits your vehicle Select your vehicle to confirm fitment before you buy. Select vehicle QA1, HK42-GMF1, Level 2 Handling Full Vehicle Suspension Kit Manufacturer: QA1 Manufacturer part number: HK42-GMF1 Old price: $7,144.38 Price: $6,448.95 Ship to Select country United States of America Afghanistan Åland Islands Albania Algeria American Samoa Andorra Angola Anguilla Antarctica Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia (Plurinational State of) Bonaire, Sint Eustatius and Saba Bosnia and Herzegovina Botswana Bouvet Island Brazil British Indian Ocean Territory Brunei Darussalam Bulgaria Burkina Faso Burundi Cabo Verde Cambodia Cameroon Canada Cayman Islands Central African Republic Chad Chile China Christmas Island Cocos (Keeling) Islands Colombia Comoros Congo Congo (Democratic Republic of the) Cook Islands Costa Rica Côte d'Ivoire Croatia Cuba Curaçao Cyprus Czechia Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El Salvador Equatorial Guinea Eritrea Estonia Eswatini Ethiopia Falkland Islands (Malvinas) Faroe Islands Fiji Finland France French Guiana French Polynesia French Southern Territories Gabon Gambia Georgia Germany Ghana Gibraltar Greece Greenland Grenada Guadeloupe Guam Guatemala Guernsey Guinea Guinea-Bissau Guyana Haiti Heard Island and McDonald Islands Holy See Honduras Hong Kong Hungary Iceland India Indonesia Iran (Islamic Republic of) Iraq Ireland Isle of Man Israel Italy Jamaica Japan Jersey Jordan Kazakhstan Kenya Kiribati Korea (Democratic People's Republic of) Korea (Republic of) Kuwait Kyrgyzstan Lao People's Democratic Republic Latvia Lebanon Lesotho Liberia Libya Liechtenstein Lithuania Luxembourg Macao Madagascar Malawi Malaysia Maldives Mali Malta Marshall Islands Martinique Mauritania Mauritius Mayotte Mexico Micronesia (Federated States of) Moldova (Republic of) Monaco Mongolia Montenegro Montserrat Morocco Mozambique Myanmar Namibia Nauru Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria Niue Norfolk Island North Macedonia Northern Mariana Islands Norway Oman Pakistan Palau Palestine, State of Panama Papua New Guinea Paraguay Peru Philippines Pitcairn Poland Portugal Puerto Rico Qatar Réunion Romania Russian Federation Rwanda Saint Barthélemy Saint Helena, Ascension and Tristan da Cunha Saint Kitts and Nevis Saint Lucia Saint Martin (French part) Saint Pierre and Miquelon Saint Vincent and the Grenadines Samoa San Marino Sao Tome and Principe Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Sint Maarten (Dutch part) Slovakia Slovenia Solomon Islands Somalia South Africa South Georgia and the South Sandwich Islands South Sudan Spain Sri Lanka Sudan Suriname Svalbard and Jan Mayen Sweden Switzerland Syrian Arab Republic Taiwan, Province of China Tajikistan Tanzania, United Republic of Thailand Timor-Leste Togo Tokelau Tonga Trinidad and Tobago Tunisia Turkey Turkmenistan Turks and Caicos Islands Tuvalu Uganda Ukraine United Arab Emirates United Kingdom of Great Britain and Northern Ireland United States Minor Outlying Islands Uruguay Uzbekistan Vanuatu Venezuela (Bolivarian Republic of) Vietnam Virgin Islands (British) Virgin Islands (U.S.) Wallis and Futuna Western Sahara Yemen Zambia Zimbabwe * Other * Shipping Method Name Estimated Delivery Price No shipping options Apply Custom wishlist OK Add to wishlist Add to compare list Email a friend Product Overview QA1's Level 2 Handling Kit is a complete solution for F-body owners who love twisty back roads and weekend track day events. This complete solution replaces your entire front and rear suspension, optimizing ride quality and handling performance. The coilovers offer adjustable ride height, while the rear suspension was optimized for wider wheels and tires. Bind Free, Light-weight Front Suspension QA1's tubular front control arms stand out as some of the lightest available in the market. QA1 low-friction ball joints have 1 longer upper ball joint studs to improve camber gain and overall cornering grip. Composite bushings eliminate flex and deliver bind-free movement. Achieve the Perfect Stance Factory coil and leaf springs limit your ability to achieve the perfect stance. QA1 double adjustable coilovers and tubular 4-link provide 0 to -2 inches of adjustability in the front and +2 to -3 inches of ride height adjustability in the rear. Fit Wider Wheels & Tires Designed to work with both standard and mini-tubs, the rear system offers generous clearance wider wheels and tires resulting in a significantly more aggressive stance and improved traction and performance. Note: Achieving maximum wheel and tire width will require mini tubs Improved Performance and Stability Perfect for both street and track use, double adjustable shocks are famous for their independent rebound and compression tunability, giving you exceptional handling and control and finer control over your suspension. Easy, Installation & Adjustment Thoughtful design meets effortless installation with a completely bolt-in front suspension and a 4-link requiring minimal welding. No modifications to floor pan required. Note: Welding required Best In-Class Lifetime Warranty Made in the USA Fitment Notes Wheel and tire fitment should be verified on vehicle Welding Required Includes Spanner Wrench QA1 Subframe Connectors recommended May require Exhaust ModificationNote: Product Overview QA1's Level 2 Handling Kit is a complete solution for F-body owners who love twisty back roads and weekend track day events. This complete solution replaces your entire front and rear suspension, optimizing ride quality and handling performance. The coilovers offer adjustable ride height, while the rear suspension was optimized for wider wheels and tires. Bind Free, Light-weight Front Suspension QA1's tubular front control arms stand out as some of the lightest available in the market. QA1 low-friction ball joints and composite bushings eliminate flex and deliver bind-free movement. Achieve the Perfect Stance Factory coil and leaf springs limit your ability to achieve the perfect stance. QA1 double adjustable coilovers and tubular 4-link provide 0 to -2 inches of adjustability in the front and +2 to -3 inches of ride height adjustability in the rear. Fit Wider Wheels & Tires Designed to work with both standard and mini-tubs, the rear system offers generous clearance wider wheels and tires resulting in a significantly more aggressive stance and improved traction and performance. Note: Achieving maximum wheel and tire width will require mini tubs Improved Performance and Stability Perfect for both street and track use, double adjustable shocks are famous for their independent rebound and compression tunability, giving you exceptional handling and control and finer control over your suspension. Easy, Installation & Adjustment Thoughtful design meets effortless installation with a completely bolt-in front suspension and a 4-link requiring minimal welding. No modifications to floor pan required. Note: Welding required Best In-Class Lifetime Warranty Made in the USA Fitment Notes Wheel and tire fitment should be verified on vehicle Welding Required Includes Spanner Wrench QA1 Subframe Connectors recommended May require Exhaust Modification Products specifications Attribute name Attribute value Prop 65 Yes/No Yes Prop 65 - Short Label WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov Brand QA1 Manufacturer Part Number HK42-GMF1 UPC 806990175250 Control Arm Color Black Front Shock Type Double Adjustable Grade Type Performance Rear Shock Type Double Adjustable Universal Or Specific Fit Specific Front Sway Bar Color Black Rear Sway Bar Color Black Country of Origin US Condition New 🚗 Compatible with 6 vehicles are compatible with this product · 1967–1969 Looking for fitment details? Add your vehicle and we'll show you instantly whether this part fits. + Add Vehicle