So I was going about 50 and stomped the gas and it shuddered but not the engine. It's a 92 supercab 4.0 auto. It also did it from a dead stop and felt like it hesitated to move. But again wasn't the engine. Recently had center bearing replaced and I'm sure he didn't position the driveshaft marks lined up. He said I will eventually need joints but they're not too bad. That was like 3 or 4 months ago. What do you think it could be?