Agitator on Maytag Washer LAT9200BAW not working

I ordered a drive belt and pulley belt and replaced old belts and my machine will spin, but the agitator isn’t working. I checked to make sure belts were placed on pulley correctly and they were. I removed the belts and turned the transmission pulley CW and CCW. It will turn both the drum and at times the agitator, but in one direction it is slipping when turned and doesn’t turn.
Is this the gearcase(transmission)?