Reply to "Are their nylon-geared MPC-era GG-1's to avoid?"

I purchased the 8753 GG1, new in 1978, from the original Nicholas Smith store at 11 th and Arch, in Philly.  Had the gears repaired maybe a year or so later by a local service station in Horsham, Pa.  I had been running it hard, pulling five or more aluminum cars.