Western Chassis – 1971-87 Chevy and GMC truck 2.5″ drop spindles lower the front of your vehicle without affecting ride quality or suspension geometry and bolt directly to the original ball joints. Over the years we have continuously improved the design to what it is today. These spindles are far superior to any modular spindle on the market. Be cautiousof modular spindle failures as sonic testing proves our spindle is far superior and no porosity.