Mounting Atlas Sprung Trucks on a Block of wood.

I'm not sure how Atlas trucks mount.

If they just have a hole, a wood screw is all that is needed. Drill a pilot hole, preferably with a drill press at the correct location. I would suggest a flat washer between the truck and the wood.

If they have a post that sits into a hole and is fastened on top with a retaining ring, they you'll need to make a simple bolster. I've made then out of a 1.5" square piece of 1/8" plastruct with scraps added to the sides to raise the piece away from the bottom with enough room for the clips. I drilled a hole in the center for the truck. Since the car that I was adding them to was European tinplate, I used #2 self-tapping screws to attach the bolster to the car floor.

I've made about a dozen flat cars by mounting Atlas trucks on pieces of wood 5/16 inch thick by 2 1/4 by about ten inches.  I just used a small nut and botl on each with some washers as spacers.  They work well.  

Thank you Lad and Lee! I'll try whichever one works. The Atlas trucks in question have a flat stationary bar with a hole in it, with another bar underneath that is attached to the suspension springs that also has a hole in line with the first.