So I decided to change the u-joints on my 1990 f250 and didn’t have to time to do it so I took it to a shop. When I got it back I noticed they put the carrier bearing to the rear of the truck. I’m in the process of fixing it and I don’t remember which end of the rear piece of the driveshaft goes to the axle. One end looks like it has a round weight and a rectangle weight and the other end has a single rectangle weight. I’ve tried to find pictures of which end those weight could be on but no luck. I was wondering if anyone happened to know which end of the driveshaft went to the axle?