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Old 01-05-2008, 01:14 PM
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35 chevy mustang II install

I am wondering if someone could advise me as to how a tubular lower control arm should line up with the crossmember.

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Old 01-05-2008, 01:39 PM
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I;m going to move this to the suspension forum, I think you will get more response there. Dan
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Old 01-05-2008, 07:41 PM
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Tubular or stock the lower control arm should be level with the crossmember which hopefully is level with the ground. That's with weight on the suspension.
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Old 01-05-2008, 07:54 PM
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did u get brackets for the CA's to weld to the frame.
I welded mine on so they will be no lower then the xmember when the lower a arms are level with the bottom of the xmember, which is where everything should be with the car completed. 1931 chevy
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Old 01-06-2008, 03:04 AM
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35 chevy mustang II install

Thank you all for replying to this question. I am wondering about the position front to back of the lower control arm. If I make it equal distance with the sides of the cross member (which I think would be right because the spring would be riding up and down right next to the crossmember) then I have to put a spacer in the front and the back both to get this centering. The front spacer is about 1/2 to 3/4 of an inch long and the back spacer is about 2 and 3/4 inches long. Would this be right? Also has anyone installed a Heidt crossmember and spring tower on a 34/35 Standard Chevy frame? To answer Cape Cod Bob, I got gussets to weld the back spacer to the crossmember. Is this what you are refering too?
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Old 01-06-2008, 08:57 AM
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Quote:
Originally Posted by dzo20
Thank you all for replying to this question. I am wondering about the position front to back of the lower control arm. If I make it equal distance with the sides of the cross member (which I think would be right because the spring would be riding up and down right next to the crossmember) then I have to put a spacer in the front and the back both to get this centering. The front spacer is about 1/2 to 3/4 of an inch long and the back spacer is about 2 and 3/4 inches long. Would this be right? Also has anyone installed a Heidt crossmember and spring tower on a 34/35 Standard Chevy frame? To answer Cape Cod Bob, I got gussets to weld the back spacer to the crossmember. Is this what you are refering too?
The position of the lower control arm depends on the relationship of your spindle vs. the wheel opening. I would mock that all up (including the upper control arm) to determine where it should be.

On my TCI MII front suspension, the lower control arm has a full-length tube that acts as the spacer, positioned flush at the front (basically, no spacer on the front), and protrudes about 3" to the rear to act as a spacer. That 3" protrusion is gussetted to the crossmember.

Hope this helps. if not, let us know.

Antny
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Old 01-06-2008, 09:44 AM
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35 chevy mustang II install

I have a picture of how I think the lower control arm should look like in regard to the crossmember. What do you think?
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Last edited by dzo20; 01-06-2008 at 10:22 AM. Reason: trying to add picture
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Old 01-06-2008, 10:45 AM
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Quote:
Originally Posted by dzo20
I have a picture of how I think the lower control arm should look like in regard to the crossmember. What do you think?
That relationship looks right; the spring perches should be centered on the crossmember as in your photo.

Antny
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Old 01-06-2008, 11:13 AM
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35 chevy mustang II install

Thanks, that helps. I am now trying to get the upper spring tower at the right height and at a 3 degree angle. I will let you know. Thanks again.
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Old 01-06-2008, 05:16 PM
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35 chevy mustang II install

How much adjustment should I allow for on the upper control arm? The upper spring towers are only tacked in. I have only got one degree negative with the upper arm pushed in all the way. I have pictures.
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Last edited by dzo20; 01-06-2008 at 05:38 PM.
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Old 01-08-2008, 04:09 PM
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A single degree of negative camber is perfectly acceptable. That is more or less what you want for a street driven vehicle. However, you want your camber to be at -1 at your loaded ride height.
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Old 01-09-2008, 05:29 AM
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I would suggest calling the manufacturer of your kit.

I would expect to have some more room in the upper mounts. Once you get your camber set, you'll need to bump the back in a little farther for the caster setting.
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