Tool #7 - Mid Roller and Axle seal driver for the OEM seal. This tool can also be used to install the OEM dirt cup. 
 
Only for the OEM Seal and will only work for the Small Wheel, Big Bore. 
 
This tool will aid in the installation of the OEM seal on the axle shaft and into the dirct cup. Using tool #7 will help allign the seal to the axle and help aid in the installation of the OEM seal into the wheel hub. The dual cone seal or OEM seal need to run true to each other, to ensure the best sealing ability, use tool #7.