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LS1 Rear axle in an LT1?

Old Nov 9, 2005 | 10:33 PM
  #1  
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LS1 Rear axle in an LT1?

Has anybody done this. I might have found a deal on a rear axle from an LS1 car. Does anybody know if this is possible or not?
Old Nov 9, 2005 | 11:11 PM
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Re: LS1 Rear axle in an LT1?

Might try searching in the "drivetrain section".... I know there are a few differences..
Old Nov 9, 2005 | 11:39 PM
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Re: LS1 Rear axle in an LT1?

I tried a search first, but the search wasn't working and kept giving me an error message.
Old Nov 10, 2005 | 09:49 AM
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Re: LS1 Rear axle in an LT1?

This should be posted in the "Drivetrain" forum. The "search" is working fine... "LS1 axle" yielded 5 hits, 2 of which are applicable to your question.

Moving to "Drivetrain"......
Old Nov 10, 2005 | 08:11 PM
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Re: LS1 Rear axle in an LT1?

Swap backing plates and axles and you're good to go.
Old Nov 10, 2005 | 09:42 PM
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Re: LS1 Rear axle in an LT1?

Sorry Injuneer, maybe my internet is messed up or something. Everytime I would try and search, it would give me an error code. I will try again though.
Old Nov 10, 2005 | 09:45 PM
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Re: LS1 Rear axle in an LT1?

I have had one on my lt 1 for about two years. The only thing I had to do was acquire the right E brake cables. Mine was a 3 channel ABS 3:42 geared unit.
Old Nov 10, 2005 | 09:50 PM
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Re: LS1 Rear axle in an LT1?

So you didn't have to change any brake lines other than the E-brake?
Old Nov 10, 2005 | 10:56 PM
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Re: LS1 Rear axle in an LT1?

Everything went right in. It tookme about two hours to do the job. The following day I drove from Sacramento Ca to Ga in three days, with no problems to date.
Old Nov 10, 2005 | 10:57 PM
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Re: LS1 Rear axle in an LT1?

Awesome, thanks for the input.
Old Nov 14, 2005 | 11:43 AM
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Re: LS1 Rear axle in an LT1?

I have an LT1 rear in my LS1, and no probs. Only thing is it's easier if you can stay with the same 3-channel or 4-channel ABS setup you've already got (straight ABS or Trac-control). If you have traction control and get a non-TC diff, it's an easier conversion to make than if you get a TC diff for a car that's only 3-channel ABS.

Last edited by Capn Pete; Jan 26, 2006 at 11:37 AM.
Old Jan 23, 2006 | 12:55 PM
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Re: LS1 Rear axle in an LT1?

Originally Posted by Capn Pete
than if you get a non-TC diff for a car that's only 3-channel ABS.
Wait a minute. I'm lost.
Isn't the non-TCS set-up the one with the one sensor mounted in top of the gear housing and senses the reluctor ring pressed onto the carrier against the ring gear? And isn't that 3-channel?

And TCS set-up's have a sensor at each end of the axle housings which read reluctor rings cast into each axle shaft? And that's 4-channel?

If you install an axle from a TCS equipped 2000 T/A into a 97 without TCS, what all needs to be done?
Can you press a reluctor ring onto the carrier and drill the top of the gear housing to mount the non-TCS sensor?

Originally Posted by Loadre
Swap backing plates and axles and you're good to go.
Why?

Originally Posted by USAF Racer
I have had one on my lt 1 for about two years. The only thing I had to do was acquire the right E brake cables. Mine was a 3 channel ABS 3:42 geared unit.
So you went with a 3-channel axle into a 3 channel car correct? What is different about the E-brake cables?

Thanks for the help,
Mike
Old Jan 23, 2006 | 02:33 PM
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Re: LS1 Rear axle in an LT1?

Backing plates are different on LS1 and LT1 cars, your brakes won't bolt up.

As for the axles, some say that LS1 axles are just a weeeee bit shorter/longer.
Old Jan 23, 2006 | 04:04 PM
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Re: LS1 Rear axle in an LT1?

Originally Posted by Loadre
Backing plates are different on LS1 and LT1 cars, your brakes won't bolt up.

As for the axles, some say that LS1 axles are just a weeeee bit shorter/longer.


SOME SAY??? LOL I say they are, I have both. I put a LS1 rear in my car and the LS1 axles are about 1/2 inch longer. I HAD to use the LT1 axles.
Old Jan 23, 2006 | 06:02 PM
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Re: LS1 Rear axle in an LT1?

That's what I thought, but I didn't wanna spout off information that I was unsure of.

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