I didn't have to mess with the kick down linkage, I've got an NP435. 
The 2v throttle cable bracket and return spring brackets will work, but your better off swapping to the 4v versions. (trust me) The trottle cables are the same.
Good luck!
-Steve C.
The 2v throttle cable bracket and return spring brackets will work, but your better off swapping to the 4v versions. (trust me) The trottle cables are the same.
Good luck!
-Steve C.