Stalls in Gear, Automatic- Restarts Good- Can Slam it into Gear! EEEK

I was in the trans business for years and saw two, but both of those were locked up solid.

Yup. Think about it fellas. Whats the only way an automatic transmission will squawk the tires when put into gear at that RPM? Locked up converter. The second he puts it in gear the car wants to go. There's no "fluid clutch" that is the torque converter. It squawks the tires. The weight and brakes prevent the car from moving. The load is transferred back onto the engine. It's the only place it can go, load has to go somewhere. Engine can't handle it. Stall.