How do I know if a sub frame is bent? Lower control arm bushing is cracked. on 2001 Buick LeSabre

Mechanic said it is bent. Auto insurance co. & three body shops say it is ok , just cosmetic. I hit a high curb in a parking space going very slow. How do I know if the sub frame is OK? Thank you, Phil Morey phil@pmorey.com

by in Mountain View, CA on March 21, 2012
2 answers
ANSWER by , March 21, 2012
get a four wheel alighnment it should say if its off and by how much and then you should then know what to do
ANSWER by , March 22, 2012
Hard to see with by eye. Usally if something is bent it will show up on a alignment rack. Some of the angles that are not adjustable like set back, toe out on turns, thrust angles, and center line will be out of wack. If a alignment specilist cannot get your caster, camber setting in a acceptable range it may indicate something is bent. We commonly run into a bent steering knuckle in a case like you discribe. Not nessasarly a bent sub frame.