 Trailing Arms, What's Inside? |
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| andys |
 Mar 12 2004, 12:45 PM
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#1
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Advanced Member  Group: Members Posts: 2,165 Joined: 21-May 03 From: Valencia, CA Member No.: 721 Region Association: None 
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Has anyone (Brad?) ever cut a trailing arm apart? I'm wondering if there are any additional structural elements inside, or are they basically two U sections welded together to form a rectangular cross section, and hollow inside. I'm not talking about the pivot point/bushing or the bearing/hub areas, but the section between them.
Thanks, Andy |
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Replies(1 - 14)
| Mueller |
Mar 12 2004, 12:47 PM
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#2
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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it's built up sorta like a corragated card board box...it is not 100% hollow inside
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| SirAndy |
Mar 12 2004, 12:48 PM
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#3
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Resident German Group: Admin Posts: 41,641 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
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| Jeffs9146 |
Mar 12 2004, 06:54 PM
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#4
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Ski Bum Group: Members Posts: 4,062 Joined: 10-January 03 From: Discovery Bay, Ca Member No.: 128 |
I have a bent one if someone wants to cut it open and see!!
Jeff |
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| ChrisFoley |
Mar 17 2004, 10:01 AM
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#5
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I am Tangerine Racing Group: Members Posts: 7,925 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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Nothing is inside a trailing arm.
I cut this one open with my plasma cutter yesterday to show you. This one had the box reinforcement on it, thus the extra thickness on one side. Attached image(s) 
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| agentblr |
Mar 17 2004, 10:12 AM
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#6
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Member Group: Members Posts: 303 Joined: 23-January 04 From: Lee's Summit MO Member No.: 1,595 |
I think my rear arm have corn flakes inside them? at least it sounds like when you shake them,this is bad (IMG:style_emoticons/default/unsure.gif)
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| jonwatts |
Mar 17 2004, 10:17 AM
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#7
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no rules, just wrong Group: Benefactors Posts: 2,321 Joined: 13-January 03 From: San Jose, CA Member No.: 141  |
Uh Chris, was there something wrong with that trailing arm? Cutting up a reinforced trailing arm for demonstration purposes only would be mighty big of you.
Andy was right, there is something inside, rust. |
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| majkos |
Mar 17 2004, 10:30 AM
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#8
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Senior Member Group: Members Posts: 1,370 Joined: 29-February 04 From: Mile High 914 Member No.: 1,729 Region Association: Rocky Mountains |
(IMG:style_emoticons/default/agree.gif) Why the chop? (IMG:style_emoticons/default/confused24.gif)
"Don't worry be Happy!" (IMG:style_emoticons/default/beer3.gif) It's St Patty day! |
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| andys |
Mar 17 2004, 11:54 AM
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#9
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Advanced Member Group: Members Posts: 2,165 Joined: 21-May 03 From: Valencia, CA Member No.: 721 Region Association: None
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QUOTE(Racer Chris @ Mar 17 2004, 08:01 AM) Nothing is inside a trailing arm. I cut this one open with my plasma cutter yesterday to show you. This one had the box reinforcement on it, thus the extra thickness on one side. Racer Chris, Thanks for the fantastic pic....just what I suspected, a simple rectangular section....no big deal. I know I'm pushing it, but what is the stock material (wall) thickness? Andy |
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| Mueller |
Mar 17 2004, 11:59 AM
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#10
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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damn...then what the heck was I thinking of then???? I must be thinking (or not) of another car or part...thanks for making a liar out me (IMG:style_emoticons/default/smile.gif) (IMG:style_emoticons/default/blink.gif)
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| SirAndy |
Mar 17 2004, 12:41 PM
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#11
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Resident German Group: Admin Posts: 41,641 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(Mueller @ Mar 17 2004, 09:59 AM) damn...then what the heck was I thinking of then???? I must be thinking (or not) of another car or part...thanks for making a liar out me (IMG:style_emoticons/default/smile.gif) (IMG:style_emoticons/default/blink.gif) you were thinking of the later model long in the area under the battery tray. the later models have "rippled" reinforcements in there ... Andy |
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| Eric_Shea |
Mar 17 2004, 08:06 PM
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#12
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PMB Performance Group: Admin Posts: 19,275 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains  |
QUOTE rust? Looks like Andy had the answer all along... |
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| ChrisFoley |
Mar 18 2004, 06:58 AM
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#13
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I am Tangerine Racing Group: Members Posts: 7,925 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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Actually that rust color is plasma cutting residue,which probably will wipe off.
The trailing arm was involved in a high speed impact and had no further usefulness on a car - perfect for an autopsy. (IMG:style_emoticons/default/laugh.gif) I can check the wall thickness today. |
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| ChrisFoley |
Mar 18 2004, 09:49 PM
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#14
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I am Tangerine Racing Group: Members Posts: 7,925 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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I measured the metal thickness at .080" or 2mm.
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| andys |
Mar 19 2004, 10:42 AM
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#15
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Advanced Member Group: Members Posts: 2,165 Joined: 21-May 03 From: Valencia, CA Member No.: 721 Region Association: None
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Chris,
A BIG THANKS!!! Andy |
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