Cat 140H pull and check or rebuilt exchange rear differential part number 8W5430 and a rebuilt final drive part number 8W4368. Also have new and used final drive parts: 191-5973 shaft, 8D-3591 carrier, 8W-2308 shaft, 129-2381 gear, 8W-4142 shaft. Please call Eastern: 617-874-1700 Or Midwest: 612-284-9300 Email: Info@qheparts.com visit: www.QualityHeavyEquipmentPartsforLess.com