ADDCO Sway Bar shoulder bolt DIY - The Acura Legend & Acura RL Forum
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Old 09-09-04, 03:24 AM   #1 (permalink)
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ADDCO Sway Bar shoulder bolt DIY

Aight. Since we are back home again here is the DIY for the extended shoulder bolt to use with the ADDCO sway bar:


Since the thread on the OEM shoulder bolt is not long enough to be able to completely tighten the nut onto the ADDCO sway bar, we are going to make a replacement shoulder bolt:



Materials: Two (2) M10-1.5 X 60 hex head bolts / grade 10.9 (or grade 8, if possible), two (2) M10-1.5 Stover lock nuts, two (2) ½” X 5/8” x 1” steel spacers, one (1) ½” x 3’ hollow aluminum welding rod, two (2) 3/8” X 1 ¼” fender washers and two (2) 3/8” flat washers. All of these materials can be obtained at your local Lowe’s or Home Depot although you may want to source the bolts and Stover lock nuts at a specialty bolt and screw shop.



1. Take one of the ½” X 5/8” X 1” steel spacers and try to slide the ½” X 3' aluminum welding rod down inside of it. If it will not slide in flush with the end of the spacer, tap the end of the spacer with a rubber mallet or regular hammer until the end of the rod is flush with the end of the spacer. Hacksaw the rod off even on the other end of the spacer and file down flush, if necessary.



Congratulations! You have just made the shoulder that is going to slide down the 1.5 X 60 hex head bolt and fit into the bushing. Before you slide the new shoulder onto the bolt, be sure to put one of the 3/8” X 1 ¼” fender washers on first. This is to keep the head of the bolt from pulling through the bushing.




2. Assuming that you have already removed the OEM sway bar & bolt, insert the new shoulder bolt into the bushing, again making sure that the 3/8" X 1" fender washer is on the wheel side of the bushing.




Be sure to take a file, Dremel or die grinder and enlarge/deburr the mounting hole on the ADDCO bar as the replacement bolt is slightly larger than the OEM. Mount the ADDCO bar & its new bushings, slide the new bolt thru the mounting hole, install a 3/8” flat washer & the Stover lock nut and you are almost done.


3. Repeat this process for the other side, make sure ALL of the bolts are properly tightened and/or torqued and you are good to go. Enjoy!

Last edited by stevieray; 02-06-05 at 06:02 AM.
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Old 09-09-04, 05:43 AM   #2 (permalink)
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Nice writeup. I shaved my bar ends just a bit to get complete threads in. I think the bar ends are still very strong enough after shaving.

BTW: I have two sets of bushings. I used the black bushing sets from my new bar. But I also have the red bushing set from the incorrect bar if anyone wants it??
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Old 09-10-04, 02:45 PM   #3 (permalink)
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To the top.
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Old 09-10-04, 04:13 PM   #4 (permalink)
 
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Any reviews of the bar? Any real non-mental difference?
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Old 09-10-04, 10:09 PM   #5 (permalink)
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Ryan, go here .
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Old 09-12-04, 07:43 AM   #6 (permalink)
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Is it absolutely necessary to dremel the Addco bar to fit the new bolt in?
If not, then I have to use the stock bolts, as I haven't got a dremel.

Thanks,
k.h.
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Old 09-12-04, 04:00 PM   #7 (permalink)
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Keith, just try it and see. You can use a rattail file and do it by hand if need be. Later---
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Old 09-23-04, 04:35 PM   #8 (permalink)
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Do you guys have a close up picture of both the end of the sway bar? Like the last picture(of the original thread) in which the sway bar is installed and tightened. "cause it seems like mine is not flushed to the rubber. There's a little bit gap.
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Mods so far:
7/8" Rear Sway Bar from ADDCO
Carbing Front Strut Bar
Clear Corner Lights
Remote Start and Remote Trunk Release
Slotted X Drilled Rotors (Front & Rear)
Clear Front Bumper Lights
Koni Reds with Stock Springs(Full Soft Setting)
17X7 TSX Rims wrapped with Nexen Tires 225/45/17
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Old 09-24-04, 12:12 AM   #9 (permalink)
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If you made a replacement shoulder bolt, you'll notice that the sleeve slightly sticks out from the bushing like this:



My suspension guy says that's OK.
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Old 09-24-04, 12:13 AM   #10 (permalink)
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Yea.. is completely fine. The bar works vertically, not horizontally, so spacing on the sides don't matter. There's no force working sideways at all.
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Old 09-24-04, 04:34 AM   #11 (permalink)
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alright, I installed mine already and I've taken pictures of it. I'll post the pics later. Thanks guys.
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'94 Acura Legend GS (AT)
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Mods so far:
7/8" Rear Sway Bar from ADDCO
Carbing Front Strut Bar
Clear Corner Lights
Remote Start and Remote Trunk Release
Slotted X Drilled Rotors (Front & Rear)
Clear Front Bumper Lights
Koni Reds with Stock Springs(Full Soft Setting)
17X7 TSX Rims wrapped with Nexen Tires 225/45/17
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Old 09-24-04, 06:41 AM   #12 (permalink)
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Here's what I used:
7/16"-14 x 2.5in Grade 8 Bolt-$0.64ea
7/16" hardened washer-$0.59 per bag(3pcs)
7/16" Split lock washer-$0.59 per bag(4pcs)
7/16" HSS Drill bit-$5.79ea.
7/16" coarse nut-$0.40(2pcs)
7/16" lock nut (with plastic inside)-$0.40(2pcs)
2pcs spacer(smaller) 2 pcs spacer(bigger than the other one)-$3.60
Here's the link to the pics http://www.imagestation.com/album/?id=3539415093
as you can see I put 2pcs. of nut at the end.(1 regular(Inner) 1 coarse(outer)
I haven't tried it yet so I can't make any comments yet. Maybe later.
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'93 Acura Vigor GS (MT)
'94 Acura Legend GS (AT)
https://www.acura-legend.com/vbulletin/image.php?type=sigpic&userid=1211&dateline=1181373  183
Mods so far:
7/8" Rear Sway Bar from ADDCO
Carbing Front Strut Bar
Clear Corner Lights
Remote Start and Remote Trunk Release
Slotted X Drilled Rotors (Front & Rear)
Clear Front Bumper Lights
Koni Reds with Stock Springs(Full Soft Setting)
17X7 TSX Rims wrapped with Nexen Tires 225/45/17

Last edited by Ackvigend; 09-24-04 at 06:56 AM.
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Old 09-24-04, 06:44 AM   #13 (permalink)
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Quote:
Originally Posted by Ackvigend
Here's what I used:
7/16"-14 x 2.5in Grade 8 Bolt-$0.64ea
7/16" hardened washer-$0.59 per bag(3pcs)
7/16" Split lock washer-$0.59 per bag(4pcs)
7/16" HSS Drill bit-$5.79ea.
7/16 coarse nut-$0.40(2pcs)
nice, where did you get the nuts, bolts and washers?
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Old 09-24-04, 06:51 AM   #14 (permalink)
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I got it at Orchard Hardware Supply. The size of the spacers are 1/2 x 21/32 x1 need 2pcs and 3/8 x 1/2 x1 need 2pcs. You just need to open a little bit on the middle of both spacers in order for them to fit to the 7/16" bolt. Don't forget to put the large washer before you put the spacers. You need to drill the sway bar holes in order to fit the bolts.
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'93 Acura Vigor GS (MT)
'94 Acura Legend GS (AT)
https://www.acura-legend.com/vbulletin/image.php?type=sigpic&userid=1211&dateline=1181373  183
Mods so far:
7/8" Rear Sway Bar from ADDCO
Carbing Front Strut Bar
Clear Corner Lights
Remote Start and Remote Trunk Release
Slotted X Drilled Rotors (Front & Rear)
Clear Front Bumper Lights
Koni Reds with Stock Springs(Full Soft Setting)
17X7 TSX Rims wrapped with Nexen Tires 225/45/17
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Old 09-24-04, 08:33 AM   #15 (permalink)
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More than one way to skin a cat. I just tried to replicate the stock shoulder bolt as closely as possible. What did you use to make the sleeve that goes thru the bushing or did you just use a big-ass bolt? Pretty work---
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