Among my rolling stock collection are two MPC-era Lionel cabooses without rear couplers. They are the 9162 Pennsy N-5 and 9166 D&RGW. Both are illuminated with the roller attached to the rear non-coupler truck. Is there such a thing as a snap on coupler that would be compatible with the roller already there or perhaps a combination coupler/roller piece that could be used? (The truck frames on both cars appear to be the same plastic design although the way they attach to the cars are different.) If so, what is the part number? I would like to upgrade them without having to remove and reattach the trucks.
Thanks,
X2000