TBS 15 REPLACING THE GEARS IN A OLD BLUE BOX SW-7

Well, the decoder is in and running great and the lights are work and now it pops its gears. let change out these 40yr old gears for a new set of A-line's.

[@dencanski]

I think the job can be done from underneath without taking the shell off...

[@JackOnTracks]

True it can be done. I take the shell off not to damage ant of the details.