Rear wheels generating excessive toe during driving.

I'm making a race car for the game, but I am having an issue where after taking only a few bumps from places like the apexes of Hirochi Raceway, the rear tires generate excessive toe. I greatly increased the beamStrength and beamDeform on the rear toe arms, but that didn't change the severity of the issue at all.

I'm thinking it might be from the excessive force on the rear suspension when the high-torque engine powers the high-friction-coefficient tires after spinning freely in the air for...

Rear wheels generating excessive toe during driving.