The OTC Rear Seal and Wear Sleeve Installer, No. 5855, are designed to install and correctly position both crankshaft rear oil seal and wear sleeve. The set covers 156mm and 166mm OD seals for select pre-2004 and 2004-2007 Navistar DT and E engines. Includes a seal installer base and forcing cup, a wear ring installer base and forcing cup, two forcing nuts, a thrust bearing and washer, and six socket head cap screws. The products dimensions are 10" width by 9" depth by 2" height, and weighs 19.4 lbs.