“Wide tracks cause directional instability.”
I don’t know about that. I do know a short wheel base causes directional instability , also known as the “death hop”.
I understand your brand loyalty. Chevy/Ford, yada yada. Because I have both vehicles sitting side by side in the driveway, and I do all my own maintenance, I’m familiar with the pros and cons of each. I’m not going to spend 20 minutes of my life that I can’t get back listing them. I’m not here to sell cars.
I’m glad you enjoy your CJ. If you have the chance, drive an FJ and take a close look at it.
Best Regards.