They fit fine on my 19 Laramie with wheel liners. The only issue is they leave a gap between the bottom of the fender liner and the top of the mud flap so they fill up with schmutz. That's why I took them off and went to Huskies.I can't recall exactly which thread it was in but some folks have said that the rear mud guards don't fit correctly on trucks with the rear wheelhouse liners and they have had to return them. It seems this issue doesn't apply to the husky mud guards for trucks with fender flares but is an issue with the guards designed for trucks without the flares. I'll be hopefully attempting the install tonight and will find out!