Thank you, Mike.
The one additional thing I can add is the screws supplied with the Atlas 70T RB trucks won't work with the Lionel Husky stack. Fortunately, Lionel supplies longer screws with the shim kit they provide with each car. You'll have to file/sand the screw head down to make it fit in the shank of the truck, but once you do that it works nicely, and secures the 2-rail truck to the car body well.
Geno