Question about Maverick Strada sc brushless

[Siclic]

Hi I’ve got a Maverick Strada sc and when I pick it up n throttle it the front and rear left side wheels spin at max ballooning the wheels and the right side has half the power. Is this normal for a 4x4 rc?
I want full power to all the wheels

 

[Tunedfrog]

Here is some interesting reading that explains it..

https://www.radiocontrolinfo.com/differential-oil/

 

[RustyUs]

Are the diffs even sealed?