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| can someone answer me a very important question; tie rods, 2 different part numbers? | |
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| Topic Started: Fri Jun 5, 2009 8:10 am (250 Views) | |
| cossie connoisseur | Fri Jun 5, 2009 8:10 am Post #1 |
fat tits
  ![]](http://209.85.122.89/static/1/pip_r.png)
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why are tie rods 2 different numbers??? i got a pair for the auto a2013301503 and a2013301603 yet they are both identical, or am i missing something and mercedes are being anal! |
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| Rich27 | Fri Jun 5, 2009 8:13 am Post #2 |
If it has tits or an engine it will be trouble
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Is one for the left side and one for the right? |
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| Martrider | Fri Jun 5, 2009 8:18 am Post #3 |
Longest build time in history?
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Got to be, even if they fit both sides, Merc did it to cover all parts separately. 
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| dave_irl | Fri Jun 5, 2009 8:36 am Post #4 |
I love offset.
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Both are the same length, but when I got my new set of arms from GSF I noticed the joints on the drivers side were of a different metal/coating on them. The only reason I can see for this is some form of heat shield for the joint from the exhaust? But otherwise they are the same length etc Middle of the left three, with the silvery caps:  |
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| cossie connoisseur | Fri Jun 5, 2009 9:35 am Post #5 |
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fat tits
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yes ones the left and ones the right and interestingly you need to switch them round if you have a left hooker however there is no difference between the 2 that i can see, well the new one is black and they new old stock is green but thats it. |
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| Martrider | Fri Jun 5, 2009 9:54 am Post #6 |
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Longest build time in history?
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So those are the arms you got from MB, not the German ebay ones are they? |
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| cossie connoisseur | Fri Jun 5, 2009 10:12 am Post #7 |
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fat tits
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no genuine parts |
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| GEZIJ | Fri Jun 5, 2009 10:19 am Post #8 |
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Shouldnt one be a left hand thread and the other a right hand thread? |
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| Martrider | Fri Jun 5, 2009 11:57 am Post #9 |
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Longest build time in history?
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I think the thread will be the same on both wouldn't it? Actually, isn't there a different hand thread in each end? Not messed with one of these in a while. |
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| cossie connoisseur | Fri Jun 5, 2009 2:12 pm Post #10 |
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fat tits
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both threads the same, i aint got a clue why MB did it...........anyone??? |
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| twopointsix | Fri Jun 5, 2009 3:50 pm Post #11 |
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Don't know why....but my 2.6 Sportline had new genuine M-B tie rods two years ago. Checked the invoice and the part numbers are exactly the same as yours. I suspect they will be left and right, as previously suggested. Sorry, no idea which one's which, or if they're different. However, a phone call to your M-B parts dept with the part # will soon tell you. |
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| wink | Fri Jun 5, 2009 4:09 pm Post #12 |
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Those part numbers are shown on the russian I.P.C the 503 for the left and 603 right I would install in those positions. |
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| Big Ben | Fri Jun 5, 2009 6:57 pm Post #13 |
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We know the positions and all that its just that, having having measured both the rods with very accurate tools, checked the threads with thread gauges, and subjected them to extreme scrutiny (I have a degree in aeronautical engineering!) we are buggered if we can find a difference!! 
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| Ukmerctechie | Fri Jun 5, 2009 7:28 pm Post #14 |
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The pivot angle of the balljoints is different left to right to compensate for the height variations of the pitman arm and idler arm assemblies,IIRC it is only a 2degree difference. |
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| Ukmerctechie | Fri Jun 5, 2009 8:09 pm Post #15 |
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Here you go Nick found the info sheet for it. So yeah with a 2degree difference you could say it is Merc being Anal 
Edited by Ukmerctechie, Fri Jun 5, 2009 8:22 pm.
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| stwat | Fri Jun 5, 2009 9:36 pm Post #16 |
Moderator
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I'm pretty sure its all about the opposite thread on one side and making sure the locknut is mounted toward the steering knuckle arm as stated in the pic above. If you switch them round, the threads and locknuts would be the wrong way round. |
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| Johnboy Mac | Fri Jun 5, 2009 11:27 pm Post #17 |
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There are several reasons why part numbers vary for a similar part. 1. Right & Left handed. 2. Different supplier used on later produced parts. 3. Modified part. 4. A part numbering system error, not too common. Also it was common for Right hand parts to end in an even number or have an even number within the part number indicating it was a right hand part and an uneven number for the Left. |
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| cossie connoisseur | Sat Jun 6, 2009 1:07 pm Post #18 |
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fat tits
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well ideal, thanks guys, so mercedes being anal is the correct answer. excellent |
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