there are many things to be done, like clutch clearances, clutch type used, steels used, roller bearing or washer used will afect end play..also what most people dont know and check is the rear and then overall end play..if your using a trans brake the manufactor of the brake may want the clearances set to his spec..and if any holes in the direct drum need to be drilled ect..very hard to help online..also when you install it make sure there is 1/8 to 3/16 of an inch endplay from the tork to the ring gear(flywheel)...