Slash 4x4 Thread

Hey guys i run a neu1512 1.5d/f in a 1/8 scale buggy,and have a spare motor and mamba monster and a mamba max pro,just got a 4x4 slash,you guys say the neu 1512 1.5 d/f is a direct fit in a 4x4 slash???? If so do i need a special pinion??? Would i need a metal spur?? God i couldnt imagine a slash,my buggy is stupid fast on 4s,,thanks for the help,,ill try to work on it tonight,