I just recently put a set of Monroe shocks on the car from advance auto. They were the best ones they sold. The car now rides rougher than it did with the 18 year old stockers! I didn't change my quads out though could having new shocks and 18 year old quads be screwing with the ride or do my new shocks just blow? I don't want to spend a fortune on shocks , just something decent for the street. I know it is a mustang and isn't supposed to ride like a caddy but this is way worse than before I replaced them.