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Unread 01-28-2013, 02:28 PM   #1
KyBoy1991
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1998 ZJ 
 
Join Date: Apr 2008
Location: Louisville, Kentucky
Posts: 666
Rear Upper Control Arm BOLT replacement

so as part of the "upgrade" to the 8.8 rear, i want to replace the PITA star drive carriage bolts used from the factory.

My question is this, as I've been looking, it shows a "shoulder" bolt. And the dealer is spec'd out a new part change as a "hex bolt" which i'm thinking is changed to what I'd like. But why is it a shoulder bolt, and what do i need to go get at the hardware store rather than pay for the dealer price of 2 bolts?

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Unread 01-28-2013, 04:34 PM   #2
Technohead
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1998 ZJ 
 
Join Date: Dec 2008
Location: Exeter, RI
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Whatever you do make sure they are SAE Grade 8 or Metric Grade 10.9.

Anything less is stupid.
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Unread 01-28-2013, 05:39 PM   #3
dusterdude
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1996 ZJ 
 
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If im thinkin right,the shoulder extends into the bushing
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Unread 01-29-2013, 06:23 AM   #4
KyBoy1991
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1998 ZJ 
 
Join Date: Apr 2008
Location: Louisville, Kentucky
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Quote:
Originally Posted by dusterdude View Post
If im thinkin right,the shoulder extends into the bushing
So it's to keep the threads from actually being smashed down creating play within the bushing? I was thinking that as well....but then the lowers are not shoulder bolts so wasn't sure.
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