I’m a 3 railer and about a year ago. I ventured into the 2 rail brass world. I already run Kadee’s on everything. I model a specific time frame and road. The Rutand. Which was famous for it’s Milk Trains. I had a number of Lionel cars. Trouble was they were all the same style. To model correct to the prototype. You basically had to have Borden’s, Sheffield Farms, maybe 1 NYC or home grown Rutland cars only in the consist. They only delivered milk to the Central which then brought the consist to NY City.
After years of wanting one. I finally bit the bullet and won an painted but undecorated Borden’s butterdish car. Operated well enough I left it as is.
I then purchased an undecorated NYC , Rutland type car. I got Highball Graphics to make up decals for Rutland passenger cars a while back and there were milk car markings in the set. It was unpainted. I use Scalecoat Coach Green. Well it couldn’t operate reliably enough to make it around the layout without derailing. Could happen anywhere. I thought of switching to hi rail wheels. I took the trucks apart. Checked out NWSL and my head was spinning with everything offered. I had a visit from Bob Bartizek. He suggested to try using Atlas 3rail commonwealth trucks.
I learned about lowering the Atlas truck right here on the 2 rail forum. No clearance issues. Uses the factory screw and ended up with the same ride height. Slightly different in design. But it has the same wheelbase and is a passenger truck. Bob gave me sound advice. No one will probably notice the car has the wrong trucks. They certainly would notice the derailing. It came out so well. I bought 3 more of that style.