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

by in Mountain View, CA on March 21, 2012
2 answers
ANSWER by on 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 on 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.

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