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Front Subframe Twisted ?


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#1 pete l

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Posted Yesterday, 01:22 PM

Hi all,

Doing up my front subframe out of the car and I'm seeing differences between the left and right. I think it's hit a kerb or something.
Is there any way of measuring and finding out where it's twisted/ bent?

Pete

#2 PoolGuy

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Posted Yesterday, 03:19 PM

Try this, skip to the 5th post https://www.theminif...ame-dimensions/



#3 burchy35

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Posted Yesterday, 04:18 PM

There is a good chance that one the front tie bar mounts has pulled away from it's weld. Quite common when you have hit a pot hole or kerb.

#4 pete l

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Posted Yesterday, 04:36 PM

What I'm really after is the top arm measurements, the top arm pickup points. I'm wondering if these have moved

#5 Spider

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Posted Yesterday, 06:15 PM

What I'm really after is the top arm measurements, the top arm pickup points. I'm wondering if these have moved

 

I tried many different way to measure them, in the end, I made a jig, I just couldn't think of any other way.

 

Perhaps if you could borrow a new subframe and make some comparative checks against that.

 

While there seems a perception that they are not all that accurate (I guess because they are a fabricated construction) I would disagree with that. The tolerance for the arms pick-up points is +/- 1/64" (0.4 mm). Also, when doing wheel alignments, you can 'see' this as small adjustments have a noticeable impact.






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