You will be a lot better off with the ride and handling by buying some better leaf springs for your car.
All the stock E bodies, 1970 to 1974, sat low in the front and rear stock shruggy
I'm not sure if Mopar is still offering their brand of new Hi Po leaf springs any more for any of our cars scope
I've used them (different part numbers) on both drag cars and street and strip cars, they worked well up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)