HI Bob --
I have a trio of shortened AM FP-7 chassis under my Wabash Valley F shells.
I put large coreless motors in them (they run REALLY nice) but I had trouble
with the original Hobbytown shafts failing under load. I replaced with K+S
3/32” square brass tubing, never to fail again...
If you go back to flexible tubing couplings on the GP-30s, make sure you get
the silicone tubing and not neoprene, rubber or latex. The silicone has a
very long lifespan...
Have fun!
Bill Winans
--------------------------------
.... The original FP-7's were built with those durable HobbyTown sets--been
running fine from day one.
I'm going through an issue with my on again off again, gray market brass
GP-30's. I replaced the rubber coupling with a plastic one. The rubber one
had started to slip, the local RC shop sold me some fuel line and that
wasn't any better, so I tried plastic universals but that made things worse.
There must be a mis-alignment but I don't have the time to devote to fixing
that right now--so be careful when you ditch the rubber (aka forgiving)
drive connection.
Bob Werre
PhotoTraxx
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