Global West front sway bar bracket bolts - Too big? - Team Camaro Tech
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post #1 of 6 (permalink) Old Feb 27th, 09, 11:39 PM Thread Starter
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Matt
 
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Global West front sway bar bracket bolts - Too big?

I'm upgrading my stock (less than 1 inch) front sway bar to Global West 1 inch bar. The bracket bolts that came with the new bar are 3/8 while the old bolts are 5/16 (see pic). These bolts screw into the frame. The new bolts are too big for the original threaded frame openings. Would it hurt anything if I reused my old bolts? Both bolts have some slack/play when inserted through the bracket holes. Anyone ran into this before?


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Last edited by zlek131; Feb 28th, 09 at 09:40 AM.
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post #2 of 6 (permalink) Old Feb 28th, 09, 10:43 AM Thread Starter
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Re: Global West front sway bar bracket bolts - Too big?

I think I am going with the old/smaller bolts. I also have an email out to GW to see whaty they say...

Matt

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post #3 of 6 (permalink) Old Feb 28th, 09, 11:43 AM
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Re: Global West front sway bar bracket bolts - Too big?

The original tapped holes in the frame are 5/16 coarse.

There is room thru the access hole on the inside of the frame rail to get in there and put a nut on the top of the bolts.
I have snapped 5/16 original and new grade 5 bolts here. Hard cornering generates a lot of force.

I currently use 3/8" grade 8 bolts, grade 8 flat washers top and bottom, and a grade 8 nuts inside the frame rail. I have not broken one of these.





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post #4 of 6 (permalink) Old Feb 28th, 09, 12:24 PM Thread Starter
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Re: Global West front sway bar bracket bolts - Too big?

Hmmm...that doesn't sound good at all. Having heard that I will drill out the holes bigger and use the 3/8 grade 8 bolt that came with the kit. I will need to get some matching nuts and a few more washers. Jim, thanks for saving me a future headache! I just got the sway bar on but everything is stool loose so great timing and this should be an easy fix.

Also, would it be any easier or make a difference to drop the bolt from the top with the nut coming from the bottom? I think I saw a pic on here that resembled that.

Matt

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post #5 of 6 (permalink) Old Feb 28th, 09, 02:25 PM
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Re: Global West front sway bar bracket bolts - Too big?

There is less room for a bolt head too. I'd use Allen bolts, they are grade 8 and the bolt head is small for better clearance.

On our 68 Camaro I put in a larger bar and drilled the frame holes out, welded 3/8" nuts onto a plate that was put inside the frame rail. The 5/16" holes are hot formed by pushing metal up into the subframe so it's like a metal tube inside. Drilling to a 3/8" -16 tap drill size (5/16") will weaken the tube and you won't be able to thread what's left. Drilling to 3/8" to install nuts still leaves a bit of the metal there, I think you need to go almost to 7/16" to remove enough of it. Also inside the frame has a step where the two frame halves meet, there is also a raised area in the center of where the bar sits that is meant to keep the frame halves from overlapping too much, this forms a bump inside that prevents a flat plate with two nuts from sitting right.
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post #6 of 6 (permalink) Old Mar 1st, 09, 12:38 PM Thread Starter
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Re: Global West front sway bar bracket bolts - Too big?

Well, I got it on and but if I had to do it all over again, I would go via Daveís suggested plate with welded nuts way when I had the coil springs out. Reason being as when tightening the nuts there is no easy way of getting a wrench on the bolt head thatís inside the frame in order to keep it from spinning. For some reason the driverís side did not have that issue and I was able to tighten the nuts without having to grab the bolt from the other end. The other side took some redneck engineering to one of my wrenches and a whole lot of patience on top of trial-and-error. I wish my fingers where a little less fat as they donít fit very well between coils and small openings in the frame. Another possible option would have been to put on the sway bar and tightened the brackets before I put in the coil springs as I had access to inside the frame. Live and learn. Thanks everyone for all you suggestions and help.


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