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Old 05-21-2009, 03:19 PM   #1
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1995 Firebird Rear End Questions. *Help*

Okay, I have the chance to buy a 1995 Firebird rearend with 3.23 Posi with disk brakes.

Are these any good? Are the disk brakes the same size on both the V6 and V8 models?

I can buy this off a buddy with disks and everything for $160 w/ a 30 day guarentee. Is this a good deal?

I don't know if this came off a V6 or V8 model though. I don't know if it makes a difference though.
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88 Firebird Formula 350 89k miles
Trick Flow 195 heads, Comp 268XFI, Superram, T56 w/ twin disk clutch, Moser 9" 3.89.
Awaiting install: ATI Procharger
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Not putting miles on your ride so it will be more appealing to the next owner is like not having sex with your girlfriend so she will be more appealing to her next boyfriend.
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Old 05-21-2009, 05:00 PM   #2
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Re: 1995 Firebird Rear End Questions. *Help*

FWIW: I bought my 95 rear minus the calipers and rotors for $90. Then I put the bigger 98-02 brakes on it.
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Old 05-21-2009, 05:15 PM   #3
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Re: 1995 Firebird Rear End Questions. *Help*

Quote:
Originally Posted by Bullydawg View Post
Okay, I have the chance to buy a 1995 Firebird rearend with 3.23 Posi with disk brakes.

Are these any good? Are the disk brakes the same size on both the V6 and V8 models?
Yes. Yes. Check the 10-bolt FAQ for information that may be helpful.

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Old 05-21-2009, 05:18 PM   #4
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Re: 1995 Firebird Rear End Questions. *Help*

Does the 1998-2002 rear have bigger disks? If so, I would rather go that route and get the torsen I want as well.
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88 Firebird Formula 350 89k miles
Trick Flow 195 heads, Comp 268XFI, Superram, T56 w/ twin disk clutch, Moser 9" 3.89.
Awaiting install: ATI Procharger
1993 GMC Typhoon Garnet Red #1519 *Stock*
1990 Ford Mustang GT *Stock *
Not putting miles on your ride so it will be more appealing to the next owner is like not having sex with your girlfriend so she will be more appealing to her next boyfriend.
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Old 05-22-2009, 02:10 PM   #5
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Re: 1995 Firebird Rear End Questions. *Help*

Anyone know the brake size difference?
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88 Firebird Formula 350 89k miles
Trick Flow 195 heads, Comp 268XFI, Superram, T56 w/ twin disk clutch, Moser 9" 3.89.
Awaiting install: ATI Procharger
1993 GMC Typhoon Garnet Red #1519 *Stock*
1990 Ford Mustang GT *Stock *
Not putting miles on your ride so it will be more appealing to the next owner is like not having sex with your girlfriend so she will be more appealing to her next boyfriend.
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Old 05-22-2009, 04:05 PM   #6
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Re: 1995 Firebird Rear End Questions. *Help*

Quote:
Originally Posted by Bullydawg View Post
Anyone know the brake size difference?
Quote:
Originally Posted by krisb410 View Post
Then I put the bigger 98-02 brakes on it.
I don't remember off the top of my head, but they are bigger. Why don't start looking around on the brake threads if you want the info
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Old 05-23-2009, 11:27 PM   #7
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Re: 1995 Firebird Rear End Questions. *Help*

Anyone know what type of differentials come in these? Auburn, Eaton??? Any good?
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88 Firebird Formula 350 89k miles
Trick Flow 195 heads, Comp 268XFI, Superram, T56 w/ twin disk clutch, Moser 9" 3.89.
Awaiting install: ATI Procharger
1993 GMC Typhoon Garnet Red #1519 *Stock*
1990 Ford Mustang GT *Stock *
Not putting miles on your ride so it will be more appealing to the next owner is like not having sex with your girlfriend so she will be more appealing to her next boyfriend.
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Old 06-08-2009, 02:04 AM   #8
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Re: 1995 Firebird Rear End Questions. *Help*

Are the 1998-2002 Brakes the same size for the V6 and V8 models, or are the V8 brakes better?
__________________
88 Firebird Formula 350 89k miles
Trick Flow 195 heads, Comp 268XFI, Superram, T56 w/ twin disk clutch, Moser 9" 3.89.
Awaiting install: ATI Procharger
1993 GMC Typhoon Garnet Red #1519 *Stock*
1990 Ford Mustang GT *Stock *
Not putting miles on your ride so it will be more appealing to the next owner is like not having sex with your girlfriend so she will be more appealing to her next boyfriend.
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Old 06-08-2009, 03:20 PM   #9
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Re: 1995 Firebird Rear End Questions. *Help*

Quote:
Originally Posted by Bullydawg View Post
Anyone know what type of differentials come in these? Auburn, Eaton??? Any good?
Auburn

Quote:
Originally Posted by Bullydawg View Post
Are the 1998-2002 Brakes the same size for the V6 and V8 models, or are the V8 brakes better?
Same
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Old 06-08-2009, 08:01 PM   #10
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Re: 1995 Firebird Rear End Questions. *Help*

okay, I found a new rear from a 4th gen. I was told it was from 2002 Trans Am, How can I check what year it is from, and how can I check the gear ratio? Also, is it going to be a torsen? Is that any good?

I looked at the brakes and it has PBR stamped on it. What is the Ls1 Rear Disk rotor size? Anyone have a link to all the information on them? I couldn't really find what I was looking for on ls1tech.
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88 Firebird Formula 350 89k miles
Trick Flow 195 heads, Comp 268XFI, Superram, T56 w/ twin disk clutch, Moser 9" 3.89.
Awaiting install: ATI Procharger
1993 GMC Typhoon Garnet Red #1519 *Stock*
1990 Ford Mustang GT *Stock *
Not putting miles on your ride so it will be more appealing to the next owner is like not having sex with your girlfriend so she will be more appealing to her next boyfriend.
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Old 06-08-2009, 09:50 PM   #11
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Re: 1995 Firebird Rear End Questions. *Help*

Quote:
Originally Posted by Bullydawg View Post
and how can I check the gear ratio?
Dude

Quote:
Originally Posted by JamesC View Post
Check the 10-bolt FAQ for information that may be helpful.

JamesC
It's a sticky post, guess you haven't bothered to read it

Quote:
Originally Posted by Bullydawg View Post
How can I check what year it is from,
If it has an Auburn diff, it's pre 98. If it has the Torsen, than it a 98-02. Also can tell by the brakes. The 98-02 brakes are also different, they have a drum parking brake.

I would start searching the "Brake" threads to find out more info on the different brakes.

Both types of diffs has their +s and -s. You need to decide which one is better for you.
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Old 06-09-2009, 01:09 AM   #12
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Re: 1995 Firebird Rear End Questions. *Help*

I would love to check and pull the cover, but it isn't in my possession yet, so it isn't a possibility. I would like to know what ratio's came in the Ls1 Cars. You can stop replying at anytime btw.
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88 Firebird Formula 350 89k miles
Trick Flow 195 heads, Comp 268XFI, Superram, T56 w/ twin disk clutch, Moser 9" 3.89.
Awaiting install: ATI Procharger
1993 GMC Typhoon Garnet Red #1519 *Stock*
1990 Ford Mustang GT *Stock *
Not putting miles on your ride so it will be more appealing to the next owner is like not having sex with your girlfriend so she will be more appealing to her next boyfriend.
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Old 06-09-2009, 03:39 AM   #13
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Re: 1995 Firebird Rear End Questions. *Help*

What type of Differential is this?
Click the image to open in full size.
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88 Firebird Formula 350 89k miles
Trick Flow 195 heads, Comp 268XFI, Superram, T56 w/ twin disk clutch, Moser 9" 3.89.
Awaiting install: ATI Procharger
1993 GMC Typhoon Garnet Red #1519 *Stock*
1990 Ford Mustang GT *Stock *
Not putting miles on your ride so it will be more appealing to the next owner is like not having sex with your girlfriend so she will be more appealing to her next boyfriend.

Last edited by Bullydawg; 06-09-2009 at 03:54 AM.
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Old 06-09-2009, 03:39 AM
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