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» Northern California Ford Owners     » Automotive   » Tech Talk   » Why have I broken two LCA bolts?

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Author Topic: Why have I broken two LCA bolts?
SF Coupe
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I broke a lower control arm bolt (the axle side) several months ago and thought it was just a fluke. Well, now I just broke the other one (other side of the car on the axle). Anybody have this happen or know what's going on?
Posts: 1082 | From: SF | Registered: Sep 2002  |  :
JoeT
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you overtorquing it when you put it on? pre-stressing it?

or maybe bolting the LCA up when the suspension is still up in the air aka unloaded?

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Posts: 6785 | From: San Jose | Registered: Jun 2001  |  :
mtbaughs
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Are you using stock mustang bolts or different bolts. If different are they stock diameter and length? Check your control arms, the area of which the bolt slides through. Make sure there isn't any play here or in the metal insert. Check your upper control arms as well to make sure the bushings are not shot allowing for abnormal movement of the rear end.

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Posts: 2019 | From: Boise, Idaho | Registered: Jan 2004  |  :
SPECIALTY15***MM PERFORMANCE***
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try inspecting the bushing if there worn it will cause it to move a snap the bolt under hard accel

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Posts: 861 | From: sacramento | Registered: Jun 2003  |  :
SF Coupe
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quote:
Originally posted by JoeT:
you overtorquing it when you put it on? pre-stressing it?

or maybe bolting the LCA up when the suspension is still up in the air aka unloaded?
I did bolt them up with the axle hanging, this is bad?
Posts: 1082 | From: SF | Registered: Sep 2002  |  :
Fostang
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yup they need to be loose until you lower the car then it can be tightened.

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Posts: 3012 | From: Stockton/Danville | Registered: Nov 2003  |  :


 
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