C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

I need torque spec on upper A-arm nuts

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Old Oct 16, 2003 | 08:13 PM
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kellsdad
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Default I need torque spec on upper A-arm nuts

I have a kit car with 87 Corvette suspension. I need to know the torque spec on the nuts to the bolts that attach the upper A-arm (where the camber adjustment shims are located). Can anyone help me?
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Old Oct 16, 2003 | 08:46 PM
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Default Re: I need torque spec on upper A-arm nuts (kellsdad)

You wont find it. The General didn't think anyone would want to replace them, so there's no torque call out anywhere. You can't buy the individual parts from G.M. It's sold as an assembly.

So, just make sure they're very tight.

EDIT: Use blue loctite, or red if you prefer........

SECOND EDIT: They're 30 mm nuts, in case you need to go buy a socket....


[Modified by edsalinas, 6:48 PM 10/16/2003]


[Modified by edsalinas, 6:51 PM 10/16/2003]
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Old Oct 16, 2003 | 09:14 PM
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SS409 425HP
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Default Re: I need torque spec on upper A-arm nuts (kellsdad)

My 1987 factory manual shows the torque as 48 FT LBS. These are the nuts that hold the upper control arm to the frame with the alignment shims. The large nuts on the forward and aft ends of the arm that hold the bushings in do not have a torque called out.
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Old Oct 16, 2003 | 10:06 PM
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Default Re: I need torque spec on upper A-arm nuts (SS409 425HP)

SS409 425 HP -
Thanks, those are the nuts I was trying to describe. :seeya
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