QA1 Suspension Spindle Drop Set - 9056-120 ⚠ Check if this part fits your vehicle Select your vehicle to confirm fitment before you buy. Select vehicle QA1 9056-120 2in Drop Spindles, 99-06 Silverado 1500 2WD Manufacturer: QA1 Manufacturer part number: 9056-120 Old price: $398.76 Price: $359.95 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 Looking for a clean way to lower the front of your NBS truck without compromising ride quality? QA1’s 2" drop spindles are a simple, effective solution for achieving a lower stance while preserving suspension geometry and steering performance. Designed specifically for 2WD 1999–2006 Silverado 1500 trucks, these spindles work seamlessly with QA1 coil-overs and control arms. CLEAN, CONSISTENT FRONT DROPThese spindles deliver a true 2" front drop by lowering your truck at the spindle instead of changing spring height. That means your suspension travel and steering geometry stay intact—giving you the stance you want without the harsh ride or alignment headaches. COMPATIBLE WITH FACTORY OR QA1 CONTROL ARMS These spindles are engineered to work with OEM control arms or QA1’s tubular upper and lower arms—giving you flexibility whether you're keeping your stock setup or upgrading to a full QA1 suspension system. FITMENT NOTES Fits 1999–2006 Chevrolet Silverado / GMC Sierra 1500 2WD with coil spring front suspension: Requires 17” wheels or larger: Not compatible with vehicles originally equipped with torsion bar front suspensionNote: Product Overview Looking for a clean way to lower the front of your NBS truck without compromising ride quality? QA1’s 2" drop spindles are a simple, effective solution for achieving a lower stance while preserving suspension geometry and steering performance. Designed specifically for 2WD 1999–2006 Silverado 1500 trucks, these spindles work seamlessly with QA1 coil-overs and control arms. CLEAN, CONSISTENT FRONT DROPThese spindles deliver a true 2" front drop by lowering your truck at the spindle instead of changing spring height. That means your suspension travel and steering geometry stay intact—giving you the stance you want without the harsh ride or alignment headaches. COMPATIBLE WITH FACTORY OR QA1 CONTROL ARMS These spindles are engineered to work with OEM control arms or QA1’s tubular upper and lower arms—giving you flexibility whether you're keeping your stock setup or upgrading to a full QA1 suspension system. FITMENT NOTES Fits 1999–2006 Chevrolet Silverado / GMC Sierra 1500 2WD with coil spring front suspension: Requires 17” wheels or larger: Not compatible with vehicles originally equipped with torsion bar front suspension Products specifications Attribute name Attribute value Grade Type Performance Prop 65 Yes/No Yes Prop 65 - Short Label WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov Brand QA1 Manufacturer Part Number 9056-120 UPC 806990233585 Country of Origin CH Condition New 🚗 Compatible with 16 vehicles are compatible with this product · 1999–2006 Looking for fitment details? Add your vehicle and we'll show you instantly whether this part fits. + Add Vehicle