4 wheel alignment

[2late4u]

never had any problems with my 2011 mainstreet with the alignment I  traded it in at 70 k on my 2014 crossroad and have 110 k on it now but i have had more trouble with keeping this journey in alignment,about 2 yrs ago i had the upper rear trailing link/control arm  replaced with adjustable ones as the OEM were non adjustable and as a precaution i bought a lifetime alignment contract from Quick Lane ( owned by ford  dealerships), any ways every time i rotate the tires every 5k i have the alignment checked as well since its free and most of the time it is out of alignment either front or rear, or both, i understand if it just a little bit out they say it needs to be corrected and most drivers wouldn't even know it is out enough till it ruins a tire which is what happened to my rear tires with the upper rear trailing link/control arm, i dive like an old man (which of course i am), most of all my driving is on good quality roads( mostly all blacktop, hardly no concrete roads)and i always swerve if i see potholes. i swear someone can look at my crossroad crosseyed and it would get out of whack...LOL front end checks out great according to the mechanic nothing out of the ordinary he says