Racing battery question

your problem is your comparing a ford with even springs to a mopar with uneven springs. Fords have an even front and rear segment whereas the mop has a shorter front segment.

What this does is cause the rear of the car to lift, unlike your ford that is squating and rolling, very different. Mopars lift causing the tires to plant (every force has an equal and opposite reaction)

So yes for your ford its the norm, on a Mopar it is not, infact it is incorrect.