I use load range E tires on my Cherokee. They do make it ride like a lumber wagon and I feel almost every bump in the road. I have them at 30psi and that's as "hard" as i feel comfortable.
For fun once, I inflated them to the full 80psi and tried to drive. It definitely bounced off of the road on bumps.
At 26-30PSi they aren't terrible.
2000 XJ - ProComp 3.5'' rear leaves, 3.5'' front coils, JK Shocks, TreadWright LT215/85r16 Crawler MT-E and some tow hooks. Skid plates in the garage.