Correct, which is why I referenced it in my post. :poke:
My only point was that plenty of people run around using an A833OD without a GV, and seem ok with it. An AX15 with a slightly better split wouldn't be any worse. I myself run an A833OD with a 2.71 rear gear ratio (long story) behind my cheap copy of a 300hp 360 crate motor. It could be better, but it is far from undrivable, and even enjoyable.
Per Wikipedia (if it can be trusted) the close ratio NV3500 is rated at 340ft/lbs. I bet it would live just fine.
Just so you are aware, it is an integral bell housing transmission, unlike the AX15/MA5/AR5/R154 style trans. Don't see that it matters, still bolts up to a SBM, just pointing it out.