Need help with gearing and what spline number to get
03-17-2015, 11:24 PM
#1
Junior Member
Thread Starter
Join Date: Nov 2014
Location: Washington
Posts: 49
Likes: 0
Received 0 Likes
on
0 Posts
Need help with gearing and what spline number to get
Hey third gen my rear end blew on my 92 trans am and I was going to purchase another rear end from a third gen member but it looks like shipping is going to be too costly. (If any one has one I would be interested) I was looking into getting new gears and match it up with stock. I think the stock gearing is 3.73 correct me if I'm wrong. And I've heard that the 92 trans am came stock with 28 spline? I am also going to replace the axle bushings and bearings. Thank you in advance
03-18-2015, 12:19 AM
#2
Supreme Member
iTrader: (13)
Join Date: Dec 2002
Location: Bowdon, GA.
Posts: 2,535
Likes: 0
Received 16 Likes
on
14 Posts
Car: 1988 Camaro
Engine: 355, 10.34:1, 249/252 @.050", IK200
Transmission: TH-400, 3500 stall 9.5" converter
Axle/Gears: Ford 9", detroit locker, 3.89 gears
Re: Need help with gearing and what spline number to get
No 3.73 is not stock gearing for your car.
The '92 trans am came with 2.73, 3.08 and 3.23.
5.0L auto got 2.73
5.0L 5 speed got 3.08
5.7L had 3.23
Yes it would have 28 spline axles.
Setting up the ring and pinion is not simple, not something you just bolt on. You need to get backlash, contact pattern, etc set right. This takes skill and a couple of special tools.
There is no such thing as axle bushings.. You have axle bearings and seals
The '92 trans am came with 2.73, 3.08 and 3.23.
5.0L auto got 2.73
5.0L 5 speed got 3.08
5.7L had 3.23
Yes it would have 28 spline axles.
Setting up the ring and pinion is not simple, not something you just bolt on. You need to get backlash, contact pattern, etc set right. This takes skill and a couple of special tools.
There is no such thing as axle bushings.. You have axle bearings and seals
03-18-2015, 07:18 AM
#3
Supreme Member
Join Date: Sep 2008
Posts: 3,777
Likes: 0
Received 0 Likes
on
0 Posts
Re: Need help with gearing and what spline number to get
It would be helpful if you would go back to your "about me" in your profile and put in your location so if someone close to you has what you need they can let you know. We have no idea where you are.
03-18-2015, 03:34 PM
#5
Member
Join Date: Jan 2011
Location: Saratoga Area, New York
Posts: 446
Likes: 0
Received 1 Like
on
1 Post
Car: 1990 Formula Firebird
Engine: 305 TBI (LO3)
Transmission: WC T-5 out of an 88 T/A
Axle/Gears: 10 bolt, 3.42 & Torsen Posi
Re: Need help with gearing and what spline number to get
I have a whole rear end. Where are you???
03-18-2015, 03:59 PM
#7
Member
Join Date: Jan 2011
Location: Saratoga Area, New York
Posts: 446
Likes: 0
Received 1 Like
on
1 Post
Car: 1990 Formula Firebird
Engine: 305 TBI (LO3)
Transmission: WC T-5 out of an 88 T/A
Axle/Gears: 10 bolt, 3.42 & Torsen Posi
Re: Need help with gearing and what spline number to get
<< My location is posted under my name...
Trending Topics
03-18-2015, 10:04 PM
#9
Member
Join Date: Jan 2011
Location: Saratoga Area, New York
Posts: 446
Likes: 0
Received 1 Like
on
1 Post
Car: 1990 Formula Firebird
Engine: 305 TBI (LO3)
Transmission: WC T-5 out of an 88 T/A
Axle/Gears: 10 bolt, 3.42 & Torsen Posi
Re: Need help with gearing and what spline number to get
10 bolt out of a 90 Formula, 2.73, open diff, drum brakes.
03-19-2015, 06:26 AM
#11
Member
Join Date: Jan 2011
Location: Saratoga Area, New York
Posts: 446
Likes: 0
Received 1 Like
on
1 Post
Car: 1990 Formula Firebird
Engine: 305 TBI (LO3)
Transmission: WC T-5 out of an 88 T/A
Axle/Gears: 10 bolt, 3.42 & Torsen Posi
Re: Need help with gearing and what spline number to get
Ok. You know, rebuilding a rear end properly will probably cost around $1000
Thread
Thread Starter
Forum
Replies
Last Post
hectre13
Engine/Drivetrain/Suspension Parts for Sale
2
12-11-2023 08:14 AM
Genopsyde
Engine/Drivetrain/Suspension Parts for Sale
3
10-07-2015 08:35 PM
hectre13
Engine/Drivetrain/Suspension Parts for Sale
7
08-26-2015 08:17 AM