Hi Gary,
Being busy this month as take time to fight for democracy in HK. I thanks for the detail review for those parts. it may helps Dominique and me.
As the 4:1 gearbox is on the way to you. And the 3:1 can be discusses as you wish.
You guys welcomes to email me if you are interested in this hull and wheels set. I`m also building a Panther F using this set up. I will post up here when I have time.