QSA 3" Lowering Drop Spindles. Compatible with 1973-1987 Chevrolet GMC C10 C1500 (1.25" Thick Rotor ONLY) 2WD - MUST measure Rotor Thickness before purchasing!! NOTE: It has come to our attention that some other people are selling their product under our listing. This other product is not Quality Suspension Brand and will NOT be covered under our warranty. Pay a couple dollars more for the real deal and be fully covered. Our spindles come with a Full Manufacturer's Warranty! 1,000's of these sold Includes 1 set of 3" Drop Spindles (L+R). Easy Install. Direct Bolt On Includes Manufacturer's Warranty See Description Below for applications (FITS 1.25" Rotors ONLY)