No, not a SporTruck. SportTrucks were just a decal package and for 91 & 92 they were the picture I posted above. Those decals were an option for a base model but not SporTruck.
When I replaced mine, a new engine also went in so I had the trans on the engine, installed that then bolted on the t-case. My truck was on jack stands, I don't think I could have mated the trans/t-case combo to the engine.