Hey guys. sorry on the delayed reply!
I have not done anything to the truck... YET!
I did acquire 2 3:1 gear reductions that you put in between motor and transmission. I ended up waiting over 2 months for them to arrive.. I have one set aside for this truck and one for another project of mine.
I am trying to get this truck and my other truck ready for the model engineering show in october. It's in Estevan, Saskatchewan if you guys are remotely close lol