nv4500/205 Twin stick help

[1967k10]

I 'm trying to install a Twin Stick on my 4500/205 combo and having a hell of a time.I got it with my nv4500 but it sure isn't made to fit.I've modifyed my tailhousing and built a new piece for the stick to move the inner rail with.It still isn't working worth a crap. Which rail do I need to grind?, the inner one right? Need to get this going asap.

 

[crawlink5]

I had to modify mine yesterday. I have an nv4500 mated to a np205 with no adapter. If your problem is the pins don't go into the levers on the np205, I can help.

EDIT: Sorry, read this wrong. You are grinding rails, mine were already installed.

 

[1967k10]

Yes I'm grinding the rails.I already ground the inner one.That's the one I was told to gring.It appears I will have to do some more mod's to the talihousing.I don't have an adapter,just an AA spacer since I have a round pattern 205 with a long input shaft.