as promised, here are some pics. as i did this for a friend of mine a long time ago, my old mind forgot a couple of very IMPORTANT things for this to work. this was for a 72 duster with a disc conversion using the small, 10 3/4" discs, and 10" rear drums on a B-body rear. as the replacement discs had 1 1/4" longstuds, the factory nuts had just enough threads for this to work because i FORGOT a 3/8" spacer HAD to be used for CALIPER CLEARANCE. the spacer i show is 2- 3/16" ones stacked, as i didn't have a 3/8" one handy. make sure the spacer you use is a quality one. the setup i show is a 73 dart assembly, and the studs are about 4 threads short, at 1" long, but would work using the doughnut as intended. "temporary" [50 miles max] and no faster than 50mph. if i remember correctly [i'm getting close to 70yrs old], no spacer was needed on the rear drums. also, we used a 16" spare, as the wheel assembly [plus the screw jack] from a 98 town & country that came with 16" wheels. the tire diameter is 24", and it fit into the duster trunk well. mock up any combination you use to be sure it is SAFE. i would feel AWFUL if something happened because i FORGOT to mention something of utmost importance ! there may be some other mopar doughnut spare wheels that have different offsets, but this particular deal was used several times with great results. here are the pics, in no particular order.