Nothing special.  An R/C Big Hauler running around my track which is in desperate need of some weeding.   https://www.youtube.com/watch?v=x0m20_JO2gk&feature=youtu.be

I have several older Big Haulers.  Every one is missing what I assume are small plastic bells that fit in the plastic wishbone bell holders.  What I see in parts are what look to be much more sophisticated multi-piece metal bell components.  Those are overkill for my inexpensive entry-level locos.  Any suggestions for finding the simpler replacement bells.  Since they seem easily lost, I would probably glue them on if I could find them.  Thanks.   

I searched the forum for this and didn't find the answer yet.  I know the frequency is 27 MHz.  My understanding from R/C cars is that there are six channels at that frequency.  They are A1, A2, A3, A4, A5, and A6.  Which one does the Big Hauler use?  Thanks.