pilot bearing issue/options

[BLLaZZR]

hey guys.. i ordered a clutch kit from clutchcityonline.com and it came with two types of pilot bearings and im not sure what one to use or if i use both.. so i have a smaller sized pilot bearing that is a pin roller style that fits in to the deeper smaller part of the crank, and the other looks to be a sealed ball bearing that is bigger diameter and fits in to the shallower bigger hole in the crank.. what do ya think or know i use.. one or the other or both?? i blew the 4.3l and it is a 96 blazer 2dr 2wd 5spd and when i took out the engine there wasnt much of any pilot bearing left in the crank at all but it looked to be the deeper smaller style bearing and now im swapping to a v8 vortec.. anyone know what i should do for this setup pertaining to the pilot bearing?