Nut sizes for upper and lower control arm removal?

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Nov 14, 2006 | 04:56 PM

Wheelman

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Le Mans Master

Joined: Jun 2001

Posts: 6,694

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From: Less Talk, More WOT | Houston TX

Nut sizes for upper and lower control arm removal?

Does anyone know the nut and bolt head sizes to remove the upper and lower control arms? I need to find a place to get a pair of giant wrenches so I can change out my bushings.

Nov 14, 2006 | 05:43 PM

LS6 Motor

Drifting

Joined: Apr 2005

Posts: 1,278

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From: New York

I just checked again, and found some pictures, 30 mm fits, and the nuts are on TIGHT!! I got them from Harbor Freight. This is the size on my 91, but I'm sure yours are probably the same.

Nov 14, 2006 | 06:36 PM

Wheelman

Thread Starter

Le Mans Master

Joined: Jun 2001

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From: Less Talk, More WOT | Houston TX

Thanks! Know if the lowers are the same?

Nov 14, 2006 | 07:04 PM

LS6 Motor

Drifting

Joined: Apr 2005

Posts: 1,278

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From: New York

Much smaller, 1/2 to be exact, a 15 mm fits nice..........

Aug 20, 2010 | 11:33 AM

C6RAPTOR

Burning Brakes

Joined: Aug 2000

Posts: 887

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From: Ontario New York

Quote:

Originally Posted by LS6 Motor

I just checked again, and found some pictures, 30 mm fits, and the nuts are on TIGHT!! I got them from Harbor Freight. This is the size on my 91, but I'm sure yours are probably the same.

Mark,
I was looking for info on upper control arm nuts and bolts on my C6 and up pops a 2006 post on the subject with an answer from my friend Mark.
What do you know about the nut that must be welded to the frame on the upper control arms that the bolt threads into. I have one that is slipping/turning at 45 ft.lb torque. Is there a GM fix for this?
Gary
C6RAPTOR

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