Trx-4 wheels wont turn (and/or return) on dirt road

[Jbonjovi1]

Hi,
Trx-4 wheels wont turn (and/or return) on dirt road/forest. They turn and return almost normally on regular flat surface.

How should I proceed to fix this? Do I need to thighten something somewhere or change the servo? And/or any other upgrade parts I should get so problem wouldn't repeat?

[Jbonjovi1]

Talking about steering.

[Unstudded_6.0]

Weak servo. Replace the servo. That's always a weakness in RTR RCs

Sent from my SM-G975U using Tapatalk

[RCWilly]

Check the servo horn, it is plastic and it strips very easily. If the wheels are hit during an impact, the servo horn would be the first to go.

Upgrade to the steel servo horn (part 8247X)

[Jbonjovi1]

RCwilly you are right. It was the servo horn. I replaced the whole servo with a chinese 20kg servo that I had in another car. Works better than the original!

[Juanmacine]

RCwilly you are right. It was the servo horn. I replaced the whole servo with a chinese 20kg servo that I had in another car. Works better than the original!

Change the stock servo is a must have in the TRX4, and the servo horn too, an aluminum one is better overall.