Putting a late model 8 1/4 Jeep rear end in a 66 Dart

I believe the big deal about this swap is weight, finding an axle that has an aluminum housing. I looked at my local yard and could not find one. Also the axles I saw looked as weak as a 7 1/4 is. Maybe I didn’t look enough to find the right axle. It all depends on how much power you are putting in front of it and how you are going to use it. My guesstimate would be if you are under 200 rear wheel horsepower and not using race compound tires at the drag strip on a glued track, it would be a good handling cruising car with one. If you are looking for an all out performance rear axle, go with a 9 1/4 (poor mans Dana)out of a dodge pickup truck or a dana 60. These axles will take what you throw at it within reason. Skip over the 8 3/4 all together. They are too pricey for what they are. (My opinion) my junk yard is at $350 for a good working 9 1/4 axle out of a pickup and what it costs to modify it for an a-body is close to a used 8 3/4.