[dtengineering]

And I'm trying to remember what gear ratio it is for (the 5:1 stage would be my guess), but one of the pinions is quite small, leaving very little material at the root. This can cause the pinion to crack when you are pushing it on. I've never had it fail in service... but for the cost of adding a few extra pinion gears to your order is less than the cost of having them rushed to you after you snap the one that you ordered!

Sometimes I spin up the FP (with the air vents taped off) and use a bit of emery cloth to take the pinion down just a thou or so in diameter. The pinion gears still hold, but are less likely to crack as you push them on.

Good luck... Banebots makes great stuff.

Jason