how can i tell if my aw4 is 21 or 23 spline? i know u need the 23 spline if u want to swap to a d300 which i would like to do. as of right now its still my daily driver and i dont have time to pull it apart and check like that. its a 88 aw4 mated to a np231 and 4.0.
kolby
kolby