Glad to hear you've had good luck with these motors.
Now that i know some 'high torque' RC motors do fit, i probably should go back through my first truck build to see if i kept any notes on gear ratios, final drives, gear inches. Ya know, boring stuff.
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Luckily i didn't save any of that!
https://www.amazon.com/gp/product/B0...0?ie=UTF8&th=1
Jungle website sells those 370 gearboxes in several flavors: 3, 6, 10, 18, 23, 30, 40, 66, 90,160, 210 RPM
Then there's a questionable review for those with chart they posted as stolen from ebay, claims gear ratios: 40, 65, 160, 200, 260, 340, 600,1000 (xx to 1)
Sketchy chart 90rpm = 65:1
Then i'm thinking something 200:1 (30), 260:1 (23), or 340:1 (18) sound much more likely numbers for dragging 10+ lbs of truck, some dirt, maybe another truck
So far all i do know for sure is that 90 rpm + Redcat motor = Too fast.
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Got some 12v at 23 RPM (260:1) units on the way. Less than 1/3 speed of the first try, and the reduction ratio seems more like a crawler. Hopefully it can get a machine out of its own way in a realistic manner.