Aristo 34' 2 Bay Offset HopperOverview:A very nicely detailed 2 bay offset hopper.It appears to be "right on" in scale, and the details are as fine as you could want. The bottom hatches are spring loaded and open.The coal load is ok, the detail is no more than you could expect from a mold. It's too shiny, will try a spray of clear matte, but heck, it's provided with the car.Aristo deserves praise for finally (but slowly) moving towards getting the Kadee 830 mounting pad right.I am building a unit train of them.Aristo and Kadee mounting history lesson:This is as close as Aristo has ever gotten to getting the Kadee coupler mounting pad right.There are 3 things you need to mount a Kadee 830 to the body:Provide the right mounting holes, spacing and diameter.Make the holes the right distance from end of car (so the draft gear is flush with the end of the car)Make the pad the proper height (the Kadee standard has been around forever)Well, Aristo used to have 0 for 3. To mount an 830 you had to:make shim to get the right height (often the pad area was not level or even continuousglue the pad in place since it was so thick, the screws might not make it all the way through.cover up the thick ugly pad, which was really obvious.Recently, Aristo made a new floor for many of their freight cars. They have #1 for the first time in years, but the height and the distance from the end of the car is wrong, way wrong. To mount an 830 you have to:Grind down the pad areaOften you had to grind down the end of the car, see my covered hopper pagedrill all new holes, since they were the wrong distance from the end of the carThis offset hopper car has #1 and #2 correct. Depending on the wheels you replace the crappy plastic ones with, you will need 1/16" or 3/32" of shim to mount the Kadee standard #830 body mount coupler.Mounting Kadees on the car:Lucky for us, Kadee just came out with a pack of 1/32" and 1/16" shims for the 830, part number 841.I threw away the plastic wheels, and used AML metal wheels, since they scale out to exactly 33" in diameter and are much cheaper than the Aristo metal wheels. (They also come correctly gauged out of the box, as opposed to the Aristo ones, woefully under specification)With the AML wheels, I needed one of the 1/16" shims to mount the Kadee 830.If you use larger, overscale Aristo metal wheels, which are larger, you need 3/32" of shim, one 1/16" shim, and one 1/32" shim)In either case, you need to trim the coupler tang off completely flush with the bolster to clear the draft gear box: When mounting the 830, I only use the 2 side screws, no reason to use the one in the back, you can see tension on the coupler will press the back of the coupler housing up against the body.Be sure to lubricate the journals, they come dry from the factory. I prefer graphite, it does not attract grit. I spin the wheels and tilt the truck side to side while they are spining to work in the lube.The Aristo hopper was 1 lb, 10 oz as delivered with Aristo truck mounted couplers and plastic wheels.With AML metal wheels and body mounted Kadee 830's it is 2 lbs, 1 oz.I really look the looks and detail of this car, and have about 8 of them as of 2009. Keep up the good work Aristo, maybe the next Kadee coupler mounting can be 3 for 3!Comparison to MDC hoppers:Interestingly, the MDC hoppers that are supposedly in 1:32 are very close in size, close enough they could be mixed in with the Aristo's: The Aristo is on the left with AML wheels and Kadee 830's body mounted. The MDC is on the right with the truck mounted coupler.You can see that the MDC is shorter and smaller, but sits almost the same height, probably just too much space between the trucks and the body.Here's an end view comparision: The MDC looks higher here, and it's obviously narrower.