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Old Mar 18, 2008 | 01:49 PM
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Default Crossmember Bolts

My friend machined me up a set of aluminum discs to reinforce the rear differential crossmember. My question is regarding the correct hardware to use. Should I install studs with red loctite on the frame to hold the crossmember in place, or should I just use longer bolts? The reason I ask is because some of the kits out there come with studs...
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Old Mar 18, 2008 | 02:19 PM
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I used a Stainless steel stud. I ran the stud then mounted the X member with a washer and a bolt. Then I put on the aluminum disc and then another washer and nut. So my X member is actually held in by 2 sets of washers and nuts.
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Old Mar 18, 2008 | 02:30 PM
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Originally Posted by Gordonm
I used a Stainless steel stud. I ran the stud then mounted the X member with a washer and a bolt. Then I put on the aluminum disc and then another washer and nut. So my X member is actually held in by 2 sets of washers and nuts.
Hey, that's a good idea! So did you use loctite on the end of the stud that went into the frame? WHat length of stud did you use?
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Old Mar 18, 2008 | 02:36 PM
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Originally Posted by stinger12
Hey, that's a good idea! So did you use loctite on the end of the stud that went into the frame? WHat length of stud did you use?
No I did not loctitie but that is a good idea. Mine does start to spin out when I remove the 2nd nut. Not a big deal but it will come out. I just got a piece of S.S. 7/16 rod and cut to length what I needed. I don't really remember what length it is.

Here is a picture so you can see about how much stud is sticking out.


Last edited by Gordonm; Mar 18, 2008 at 02:39 PM.
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Old Mar 18, 2008 | 02:42 PM
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Originally Posted by Gordonm
No I did not loctitie but that is a good idea. Mine does start to spin out when I remove the 2nd nut. Not a big deal but it will come out. I just got a piece of S.S. 7/16 rod and cut to length what I needed. I don't really remember what length it is.

Here is a picture so you can see about how much stud is sticking out.

Are you referring to threaded rod? I didn't know they sold that stuff in Grade 8...
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Old Mar 18, 2008 | 04:26 PM
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I got one of the kits and it came with 2 nuts for each stud, the first one secured the crossmember and the second held the disc. I did use loctite on them.
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Old Mar 18, 2008 | 04:55 PM
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The threaded rod is not grade 8. Mine is Stainless steel. The really is very little stress on that bolt. with the weight of the car it is resting on the sombrero hat and not really the bolt at all. The aluminum disc is just to stabalize the X member. A grade 8 bolt or stud is really not needed in this case.
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Old Mar 19, 2008 | 12:01 AM
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This is what came with the kit that I got.

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