It's more involved than that, Rocky. Ford had a bunch of changes they wanted from ZF for the Pantera, so ZF had to cast up & machine a large batch of new cases and piece-parts. But DeTomaso wanted to sell Euro Panteras immediately via his part of the contract, so he got ZF to do a transition ZF- what Lloyd Butfoy calls a 'dash-1-1/2' ZF. The dash-1s were units for GT-40s and Mangustas. The dash 1-1/2s are a GT-40/Mangusta transmission mounted upside-down with a sand-cast adapter-bellhousing and a Pantera-oriented diff case. The prototypes, pushbuttons plus some of the early production '71s got these boxes.
They mostly had Mangusta gearing (4.44:1) instead of Pantera gearing of 4.10:1 so thats why early Euro road tests noted their test Panteras had dragster-like acceleration but only a 135 mph top speed. Later, Ford swapped as many of the low ratio ring & pinions as they could find. The back-ordered parts situation was so bad for Ford's self-inflicted schedule, they started negotiations with Ashok Industries to cast up and machine ZFs under license in Israel! I have some of the early correspondence.
By working 24/7, ZF finally got caught up but by then a few hundred transition ZFs were sold- mostly in Europe & Asia. You can find the serials of all those dash 1-1/2 ZFs in the Archives, or from Lloyd. And you're also right about 'other models': before the GT-40s, an early application was for Fendt of Germany's big road construction rollers! One old time Euro Pantera guy found a wrecked Fendt somewhere and told me he actually used salvaged parts from its ZF on his car!