Never thought I'd see the day you preordered an Axial :lmao:
I think it's an OK idea, the problem I have is it is 23T whereas most servos people use are 25T. I get why they'd want you to use a Spektrum servo, and I suppose most people will buy the horn of their choice anyway.
Since the portal gears are presumably the same F/R and Rich mentioned overdrive for the front, I'm going to say ring & pinion.
I thought the same thing on the pre-order.. haha
There are inserts for both 23T and 25T servos included so you are covered.
And if anyone uses a 24T they are available for sale part # LOSA99042