KYB shocks?

I have run KYB on all of my E-bodies since 1977. 6 so far.
Fine ride and performance. Mopars have always squatted in the rear, even when new.
Don't use Band-aides. Replace the springs with a slightly higher arched spring.
The originals were designed for a bias ply tire tuned suspension. You probably are running radial tires now.