For rear ends. Universal pinion setting tool so you can measure pinion depth of most automobiles and trucks.Proform Differential Pinion Setting Tool 66516Specifications: Feature/Benefit For rear ends. Tool Type Pinion Setting Tool Category Pinion Setting Tool Description_ABR Pinion Tool Description_SHO Pinion Setting Tool Description_INV Pinion Depth Setting Tool Description_INV Universal Description_DEF Differential Pinion Setting Tool Description_ASC Pinion Depth Setting Tool Description_ASC Universal Model Description_ASC 0-1.000 Inch Range Description_ASC 0.001 Increments Description_LAB Pinion Depth Setting Tool Description_LAB Universal Model Description_LAB 0-1.000 Inch Range Description_LAB 0.001 Increments Description_DES Pinion Depth Setting Tool Description_DES Universal Model Description_DES 0-1.000 Inch Range Description_DES 0.001 Increments Description_EXT Pinion Depth Setting Tool Description_EXT Universal Model Description_EXT Dial Indicator has a 0-1.000 Inch Range Description_EXT Reads in 0.001 Increments Description_EXT Includes Mounts and Adapters Description_EXT Made from High-Quality Billet Aluminum Description_EXT Red Anodized Finish Description_EXT Carrying Case Included Description_MKT For rear ends. Universal pinion setting tool so you can measure pinion depth of most automobiles and trucks.