what brand frontend parts did you use? our dart had driven me crazy for a few years not steering right.. felt darty which almost felt like play in the front end.. had a couple alignments done on it (no one would put it exactly where i wanted it) and it never got better,,,, i've don't plenty of these front ends over the years and never had this issue. i converted to big bolt disc with all moog parts like i have done in the past.... so over time i read about people having problems with moog ball joints lately.. i'm pretty confident the upper joints are ok brcause they are RMS arms and bill uses good parts so i deceded to change out the lower ball joints.. didn't see anything wrong with them but as soon as i pulled the car out of the garage i knew it was fixed... a brand new moog ball joint was bad and binding for some reason.. sent it in for an alignment and man the thing steers liek it should. we put more miles on the car in 2020 then we had over the previous 4 years combined.. so much nicer to drive. may be something to look at for you.