Maverick transmissions: c4 automatics, light duty 3 spd manual on the smaller sixes, and a heavier duty 3 spd. manual behind the 250 cid six and 302 V8s. I don't know if the Grabbers ever offered a four speed option? Anyone else?
Manuals were severely limited to three-speeds. Four-speed toploaders and T-5's (5-speeds) are both popular swaps, and easily achievable, but are not factory.
That's interesting, Mavaholic--did the Brazilian Mav's come with four-speeds? I learned something new!