8.5 rear end question - Team Camaro Tech
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post #1 of 15 (permalink) Old Mar 22nd, 13, 02:37 PM Thread Starter
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8.5 rear end question

i have open 2.41 in my caprice. i need to swap to 4.10 to complete my six speed swap. everything that is for sale says fits 2.73 and numerically higher carrier. what do i do?
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post #2 of 15 (permalink) Old Mar 22nd, 13, 03:01 PM
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Re: 8.5 rear end question

You bite the bullet and buy a series four posi carrier.
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post #3 of 15 (permalink) Old Mar 22nd, 13, 03:07 PM
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Re: 8.5 rear end question

Yes, i believe that is correct; Anything 2.73 and numerically higher (i prefer the term lower) fits a 2.73 carrier. Anything numerically lower---i.e., 2.41, 2.56 gets their own carrier.

But get more opinions as mine is shaky as you can see.
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post #4 of 15 (permalink) Old Mar 22nd, 13, 05:22 PM Thread Starter
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Quote:
Originally Posted by cool rocking daddy View Post
You bite the bullet and buy a series four posi carrier.
why series 4? what is the difference

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post #5 of 15 (permalink) Old Mar 22nd, 13, 06:00 PM
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Re: 8.5 rear end question

Got to do your research, son. Maybe learn some manners. You don't ask, you don't say please, you don't say thanks. Google it.
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post #6 of 15 (permalink) Old Mar 22nd, 13, 06:25 PM Thread Starter
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wow...really? not my intention. i was asking because someone else recommended a series 3.

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post #7 of 15 (permalink) Old Mar 22nd, 13, 07:14 PM
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Wink Re: 8.5 rear end question

OEM GM 4:10 gears fit the Series 4 carriers.
Aftermarket 'thicker' 4:10 gears are available to fit a Series 3 ...

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post #8 of 15 (permalink) Old Mar 22nd, 13, 07:45 PM Thread Starter
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Quote:
Originally Posted by Vintage 68 View Post
OEM GM 4:10 gears fit the Series 4 carriers.
Aftermarket 'thicker' 4:10 gears are available to fit a Series 3 ...
thank you

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post #9 of 15 (permalink) Old Mar 22nd, 13, 08:18 PM
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Re: 8.5 rear end question

I don't believe there was a 4 series carrier for the 8.5. Get the 3 series (2.73:1 & up) and gears to fit it.


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post #10 of 15 (permalink) Old Mar 22nd, 13, 08:27 PM
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Smile Re: 8.5 rear end question

Quote:
Originally Posted by hotrodjunky1982 View Post
i have open 2.41 in my caprice. i need to swap to 4.10 to complete my six speed swap. everything that is for sale says fits 2.73 and numerically higher carrier. what do i do?
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You are correct you need a carrier (differential) for the 2.73 and numerically higher gears.

The 12- bolt has the 2,3,4 series carriers, but you are talking about an 8.5 10-bolt.

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post #11 of 15 (permalink) Old Mar 23rd, 13, 08:04 AM Thread Starter
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Quote:
Originally Posted by cool rocking daddy View Post
You bite the bullet and buy a series four posi carrier.
so the above is WRONG?

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post #12 of 15 (permalink) Old Mar 23rd, 13, 09:08 AM
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Smile Re: 8.5 rear end question

Yes, it is. 8.5's don't have 4 series.

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post #13 of 15 (permalink) Old Mar 23rd, 13, 10:48 AM
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Re: 8.5 rear end question

Quote:
Originally Posted by BPOS View Post
I don't believe there was a 4 series carrier for the 8.5. Get the 3 series (2.73:1 & up) and gears to fit it.
Didn't think there was but I wasn't going to say it. Like I said, dude can try to do his own research once in a while.
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post #14 of 15 (permalink) Old Mar 23rd, 13, 11:07 AM
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Red face Re: 8.5 rear end question

Yup, you're right - missed the 8.5 part even though it's in the title ...

For the 8.5 you'd use a 3-series And the correct aftermarket gears.
You want to avoid using spacers for the lower carrier series if possible.

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post #15 of 15 (permalink) Old Mar 23rd, 13, 02:49 PM Thread Starter
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Quote:
Originally Posted by cool rocking daddy View Post
Didn't think there was but I wasn't going to say it. Like I said, dude can try to do his own research once in a while.
i had been and i was confused. that is why i asked. furthermore, i thought these forums were to share knowledge and support one another. i cant begin to fathom why youre being such a negative person. ill chalk it up to a rough day, as opposed to a character flaw.i dont know you and you dont know me, and from your corespondence im thinking i wouldnt enjoy your company much. no sweat though,bud. there are plenty of positive members with good intentions. il kindly ask you to not respond to my threads if this is how youre going to be... its a waste of BOTH our time.

Just remember kids, try to be nice to EVERYBODY... one day you just might need that bridge you burned.

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