This tool is a must-have for any workshop, it extracts the flywheels from the crankcases without using a hammer or having to resort to a large hydraulic press. Simply bolt it to your case and use a wrench. Also helps separate cases and break the sealant bond. For 1955 to present Big Twins. Works on all 1955 thru 1999 Panhead, Shovelhead and Evolution Big Twins, 1999 thru 2005 Twin Cam Dyna, 1999 thru 2006 Twin Cam Touring and 2000 thru 2006 Twin Cam Softail. On Twin Cam Softail, this tool can only be used to remove the flywheel from the left crankcase.