Transmissions and Drivetrain Need help with your trans? Problems with your axle?

1995 Firebird Rear End Questions. *Help*

Thread Tools
 
Search this Thread
 
Old May 21, 2009 | 02:19 PM
  #1  
Bullydawg's Avatar
Thread Starter
Supreme Member
iTrader: (7)
 
Joined: Nov 2006
Posts: 3,740
Likes: 15
From: Alamogordo, NM
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
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.
Reply
Old May 21, 2009 | 04:00 PM
  #2  
krisb410's Avatar
Supreme Member
15 Year Member
iTrader: (9)
 
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
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.
Reply
Old May 21, 2009 | 04:15 PM
  #3  
JamesC's Avatar
Moderator
25 Year Member
Liked
Loved
iTrader: (5)
 
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 1995 Firebird Rear End Questions. *Help*

Originally Posted by Bullydawg
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.

JamesC
Reply
Old May 21, 2009 | 04:18 PM
  #4  
Bullydawg's Avatar
Thread Starter
Supreme Member
iTrader: (7)
 
Joined: Nov 2006
Posts: 3,740
Likes: 15
From: Alamogordo, NM
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
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.
Reply
Old May 22, 2009 | 01:10 PM
  #5  
Bullydawg's Avatar
Thread Starter
Supreme Member
iTrader: (7)
 
Joined: Nov 2006
Posts: 3,740
Likes: 15
From: Alamogordo, NM
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
Re: 1995 Firebird Rear End Questions. *Help*

Anyone know the brake size difference?
Reply
Old May 22, 2009 | 03:05 PM
  #6  
krisb410's Avatar
Supreme Member
15 Year Member
iTrader: (9)
 
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Re: 1995 Firebird Rear End Questions. *Help*

Originally Posted by Bullydawg
Anyone know the brake size difference?
Originally Posted by krisb410
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
Reply
Old May 23, 2009 | 10:27 PM
  #7  
Bullydawg's Avatar
Thread Starter
Supreme Member
iTrader: (7)
 
Joined: Nov 2006
Posts: 3,740
Likes: 15
From: Alamogordo, NM
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
Re: 1995 Firebird Rear End Questions. *Help*

Anyone know what type of differentials come in these? Auburn, Eaton??? Any good?
Reply
Old Jun 8, 2009 | 01:04 AM
  #8  
Bullydawg's Avatar
Thread Starter
Supreme Member
iTrader: (7)
 
Joined: Nov 2006
Posts: 3,740
Likes: 15
From: Alamogordo, NM
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
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?
Reply
Old Jun 8, 2009 | 02:20 PM
  #9  
krisb410's Avatar
Supreme Member
15 Year Member
iTrader: (9)
 
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Re: 1995 Firebird Rear End Questions. *Help*

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

Originally Posted by Bullydawg
Are the 1998-2002 Brakes the same size for the V6 and V8 models, or are the V8 brakes better?
Same
Reply
Old Jun 8, 2009 | 07:01 PM
  #10  
Bullydawg's Avatar
Thread Starter
Supreme Member
iTrader: (7)
 
Joined: Nov 2006
Posts: 3,740
Likes: 15
From: Alamogordo, NM
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
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.
Reply
Old Jun 8, 2009 | 08:50 PM
  #11  
krisb410's Avatar
Supreme Member
15 Year Member
iTrader: (9)
 
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
Re: 1995 Firebird Rear End Questions. *Help*

Originally Posted by Bullydawg
and how can I check the gear ratio?
Dude

Originally Posted by JamesC
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

Originally Posted by Bullydawg
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.
Reply
Old Jun 9, 2009 | 12:09 AM
  #12  
Bullydawg's Avatar
Thread Starter
Supreme Member
iTrader: (7)
 
Joined: Nov 2006
Posts: 3,740
Likes: 15
From: Alamogordo, NM
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
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.
Reply
Old Jun 9, 2009 | 02:39 AM
  #13  
Bullydawg's Avatar
Thread Starter
Supreme Member
iTrader: (7)
 
Joined: Nov 2006
Posts: 3,740
Likes: 15
From: Alamogordo, NM
Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
Re: 1995 Firebird Rear End Questions. *Help*

What type of Differential is this?

Last edited by Bullydawg; Jun 9, 2009 at 02:54 AM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
hectre13
Engine/Drivetrain/Suspension Parts for Sale
2
Dec 11, 2023 08:14 AM
AkDrifted
Engine/Drivetrain/Suspension Parts for Sale
6
Aug 17, 2015 07:45 PM
mizz0313
Transmissions and Drivetrain
3
Aug 12, 2015 06:45 AM
BlackBoulder
Suspension and Chassis
2
Aug 11, 2015 11:15 PM
1992 Trans Am
Engine/Drivetrain/Suspension Parts for Sale
1
Aug 8, 2015 08:16 PM




All times are GMT -5. The time now is 05:12 AM.