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Difference in a 98 and 99 rearend???

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Old Nov 23, 2004 | 07:50 AM
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Default Difference in a 98 and 99 rearend???

I have a 98 with the bone stock 3.42 rear. I also bought a rearend from a 99 SS Camaro. It has a T/A cover, 4.10's and has been rebuilt. The only thing was that it was missing the big pin that goes in the inside of the rear. I think no big deal, I will just swap the pin out into the 99 rear. Well the posi's seem to be different??? I believe the one in the 99 is a Torsen, and the 98 possibly an Auburn??? Does anyone have pics of a 99 rearend so I know what else I am missing inside? The 98 has what I guess is a spider gear ( goes in the center, and has a bunch of springs. The 99 doesnt have this. Should it? I cant swap the spider gear from the 98 to the 99 cause the opening in the center of the 99 rear is smaller than the 98???
Thanks!
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Old Nov 23, 2004 | 01:40 PM
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Ok I believe the rear from the 99 is a Torsen do to the fact that the word Torsen is printed on the posi. What I am looking for is the center piece that keeps the axles from backing out. Not the clips. ???? HELP!!!!
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Old Nov 24, 2004 | 08:22 AM
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TTT!!! Nobody has a pic or knows where I can find a pic of a stock Torsen?
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Old Nov 24, 2004 | 12:36 PM
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Go to the second pic that shows the inside of the posi. There is a big solid piece that goes in the center to hold the axles in. Wat is it, and does anyone know where I can buy one or have an extra laying around??? Someone help me please!!!
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Old Nov 24, 2004 | 03:41 PM
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I believe you're talking about the center pin. It should be held in place by a small bolt. I can't say for sure if the center pins are interchangeable between the '98 Auburn and the '99 Torsen....Anyone help this person? WJ
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Old Nov 24, 2004 | 08:23 PM
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It's called a paddle in the Torsen and no it isn't the same part in the Auburn. I know SLP sells a 2 piece paddle but is expensive. You would think this would be an easy part to find in a junk yard or the dealer??

Last edited by HavATampa; May 31, 2011 at 10:14 PM.
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Old Nov 25, 2004 | 07:43 AM
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Originally Posted by HavATampa
It's called a paddle in the Torsen and no it isn't the same part in the Auburn. I know SLP sells a 2 piece paddle but is expensive. You would think this would be an easy part to find in a junk yard or the dealer??
Is this the same thing? http://cgi.ebay.com/ebaymotors/ws/eB...spagename=WDVW
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Old Nov 26, 2004 | 09:08 AM
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Yep, that's the stock replacement series 3 Torsen, at least the part number is. You have 12 hours to decide if you want it or not. Probably not a bad price for a new unit.
Here's an Ebay link to the SLP paddle replacements for the diff. Would be a cheaper and easier fix than swapping out the whole diff.
http://cgi.ebay.com/ebaymotors/ws/eB...sPageName=WDVW
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