✅Specification:Inner Diameter: 2.5in (63.6mm), Overall Height: 1.83in (46.5mm), Inner height: 0.985in (25mm) ,Two Jaw Between Diameter: 0.52in (13.3mm), Jaw Height: 0.19in (4.9mm). ✅Applicable models:Fits Dodge Ram 2019 and up 3500 dual rear wheel trucks, 4500, 5500 (D2, DD, DP) chassis cab trucks. ✅OEM Replacement Number:2066600030,31520. ✅Usage:Fits 12 pin axle spindle hub bearing retaining nut socket、Assists in servicing remove and install the hub bearing retaining nut. ✅We offer free lifetime replacement and refund policy for "Axle Nut Socket". HRepair Axle Nut Socket丨fits for Dodge Ram 3500 4500 5500 2019-2022丨Replacement Lisle 31520 Axle Nut Socket丨12 Pin-Black