John, You want the Lionel NTCL-1 truck:
http://store.justtrains.com/NT...e-Roller_p_2690.html
This is the same truck your car has, with the addition of the center roller collector. If you choose, you can discard the shoe, but I would keep it and wire it in for either the couplers or dump mechanisim to be operated by a UCS (powered by track power, not accessory power), and not exclusively TMCC.