***LIMITED ITEM PLS ALLOW 4 BUSINESS DAYS HANDLING TO SHIP*** Oil pump/crankshaft gear alignment tool is used to align the oil pump gear flats with the flats of the crankshaft. For Twin Cam 88 inch and M8 models. We recommends assembling the camplate oil pump camshaft etc together on the bench lining up oil pump gear flats with crankshaft flats and installing the complete assembly into the camchest as one complete unit. This procedure has proven to provide the best seal on the back scavenge port of the oil pump to engine case as the parts are always going inwards towards the scavenge port. *NOTE: Twin Cam engine rotate the crankshaft flats so they are horizontal and align oil ump gear flats horizontal to match. *NOTE: M-8 rotate the crankshaft flats so they are vertical and align oil pump gear flats vertical to match. FITS HARLEY: 1999-UP FL, 1999-UP FXST, 1999-UP FLST, 1999-UP FXD, 1999-UP FLT,