IRS Pin Drive Trigo fitment problem...

[asmyrnios]

Hello all, and thank you in advance for any helpful replies. I'm assembling a pin drive width IRS and it's time to mount the wheels (15" Trigo FIAs.) When I slide the Trigo adaptor onto the new Ford Racing 5-lug kit car IRS hub, the studs are so long that the pin nuts cannot be tightened fully onto the adaptor. I have included pictures. Am I missing something here? Is a spacer required? I've seen no mention of this anywhere. I'm assuming it's operator error at this point. Ideas?
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[Bren]

First, you're going to want to put your brake rotors on. Also, you're going to need to grind down/cut off the non-threaded parts of the lugs.

[asmyrnios]

Thanks, Bren! Trigo gave me a phonecall which stated just that. Apologies. I appreciate it.

[aspbite]

I'm running a solid rear axle and getting ready to order my rear axles. What length studs are required for the pin drive adapters to work?

[Bren]

I don't remember what the length needed is, but I do remember that they aren't manufactured by anyone. I checked everywhere. You have to cut them to length.