LSX Ron

i’m in the middle of doing a 4l80 swap i have mostly everything but running into a problem with the transfer case bought the short shaft for the inside to turn it into a 32 spline instead of the 27 but did not need it i’m have to change out the main spline shaft to a 32 what part will i need all i’m see online is not for my transfer case i have a nr3 i thought i had a np149 until i open it..it’s wayy different