Ariens 52003600 – Replacement MPN: 52003600 Ariens OEM, Part Number: 52003600 GEAR CASE- 24 ALUM SM TOP-LD Genuine Ariens Part # 52003600. Ariens 52003600 Gravely Gear Case 24 Alum Sm Top Ld. Ariens Part Number: 52003600 Compatible with the following Models: Ariens Sno-Tek 28E Ariens Sno-Tek 24E Ariens Sno-Tek 22E Ariens Sno-Tek 20R Ariens Sno-Tek 20E Ariens Classic 24 LT Ariens Classic 24. We are proud to be a factory authorized retailer. We use several different carriers and choose the most economical for the item and destination based on the estimated transit time displayed. FixMyToys – A Division of Ball Equipment.