Western Chassis 11073- 1973-87Chevy and GMC truck replacement disc brakespindles allow you to restore your truck to brand new. These are the first replacementspindles to hit the industry back in 1998. 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 Western Chassis’ spindle is far superior and no porosity.