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Is The Rearend Ofls1 The Same As Lt1?

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Old Sep 25, 2008 | 08:15 PM
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Red face Is The Rearend Ofls1 The Same As Lt1?

I Need Help Is A 1999ls1 Rearend The Same As The 1995rearend?i Think Is Cool Longest The Abs Clip Is The Same One!!i Need Help?thankyou Is A 12bolt With 3.73
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Old Sep 25, 2008 | 08:58 PM
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Are you talking about a 10 bolt or 12 bolt? Not that that part really matters. Main differences are in the brake geometry meaning the rotors, backing plates & calipers. So if you are putting an LS1 setup rear end in your LT1, you could use the LS1 style brakes and do a complete swap. Or you change out your backing plates and use your original LT1 brakes and rotors.
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Old Sep 25, 2008 | 11:22 PM
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hey cesar LS1's dont have 12 bolts..... call Jorge at Express....
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Old Sep 26, 2008 | 12:52 AM
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I belive so as long as the LS1 didnt have ASR.
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Old Sep 26, 2008 | 01:49 AM
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Its not completely the same. I put an LS rearend on mine cuz it had 342's, I had previously 273's. The e brake cable is different. The brake lines were not the same length or fittings. And the ABS was 2 wire (LT) instead of 4 wire (LS) with a different connector head also.

If you put in some time and alittle money, than you can convert, but it isn't just a simple swap.
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Old Sep 26, 2008 | 04:04 AM
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dont forget, the torque arm bolt mounting locations differ between the 93-97 and the 98-02 differential housings.
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Old Sep 27, 2008 | 03:07 PM
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well thanks guys i will take a closer look, and yes it is 10bolt rear end
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