Can't fix that. Your universal joints are not designed to operate at that angle, you need a dual cardon joint of some sort or less steering angle... and as it's a drift car that's not an option to just run less steering angle.
If it makes you feel better, the car was doing it before you just couldn't see it.
I race toy cars for fun. If I need to explain, you'll never understand.
If everything is under control... go faster.
WTB: Carpet racing in Arizona.
It is obvious and intuitive to the most casual of observers that RC racing is better than golf.