Radio DX7 vs DX8 or suggestions

[Hotwheels]

I will do so keep my lap top open on the bench great reference tool took me about a half hour to find info on futaba wire config to ar8000. Couldn't find it in the manual. But if I read correct after trimming j plug the config is black top red middle white bottom looking at receiver with the label side up. This truck came with the good ol futaba S148 standard servos, in steering, tranmission and 5th wheel. Should I change these out to a servo with more torque? or at least the steering? What do you guys run for servo's?