[The Boomerang 2008 slower motor, help needed]

Thank you guys for all the advice. Much appreciated. 
 

Will the 55t and 80 t also have increased torque?

[The Boomerang 2008 slower motor, help needed]

Hi,

I am building the Boomerang for my sons 5th birthday. Since we live in a wild forested area and this will be his first rc car I want to gear it down so he can get a hang of the controls before we can speed it up again and tackle the difficult terrain here.

I have no experience with building RC cars but quite a bit with all sorts of mechanics, I am not really challenged in the build department. However I have a few questions to make sure I am getting the right parts which I am ordering online from am@z..

Will these parts work with this particular car:

• INJORA 540 Brushed Motor 55T Waterproof Motor for 1/10 RC 

• diymore  25KG Servo High Torque RC Servo Waterproof Full Stainless Steel Gear RC DS Servofor with 1/6,1/8,1/10,1/12 RC Car 

• GOLDBAT 3600mAh 7.2V NiMH RC Battery with Tamiya Connector for for RC Evader BX Car Truck Truggy Buggy Tank Car Racing (3600-7.2V-Tamiya)

 

Also ANY advice regarding the use of the 55t motor is appreciated