Help ID a833

AJ/FormS said

But IMO, the Command box is a better solution. You get the 3.09 low, and the rest is like the standard box. So you can run 3.23s

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OK, WHUT?? ............is a "command box?"

Only 3X low gear 4 speeds I know of (non OD) were some slants and 273?

By the way I don't think the 3X low gear boxes are particularly strong, either