i've got a 3 spd housing with four spd gears. aa adapter from a nv4500. the bearing that goes on the back of the transfer case and has that cone shaped cover over it- my question is should that bearing fit snug into the back of the tcase? it's snug on the output shaft, but it just slides right into the back of the housing. i was expecting to hammer it in there with a block of wood or something. anybody know if i might have the wrong bearing? the part # i took to napa was 6306-32r-2nsl and they crossed it over to grw 114r and the measurements are id-1.2598 od-2.8346 and w-.7480