Question about 4th gen rear

Reply Subscribe

Thread Tools

Search this Thread

Oct 21, 2006 | 11:37 PM

85T/A350

Thread Starter

Member

Joined: Jul 2006

Posts: 304

Likes: 0

Car: 1987 Pontiac Trans Am

Engine: 350 Vortec

Transmission: 700R4

Axle/Gears: 3.42

Question about 4th gen rear

Out of what 4th gen car would have the 3.73 posi rear end?
Is 3.23 gears good?

Oct 22, 2006 | 06:17 AM

JamesC

Moderator

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

Quote:

Originally Posted by 85T/A350

Is 3.23 gears good?

Personally, I wouldn't want anything below 3.23's, which is what I run.

JamesC

Oct 23, 2006 | 06:53 AM

Pat Hall

Supreme Member

iTrader: (31)

Joined: Nov 2000

Posts: 3,347

Likes: 3

From: Roy,UT USA

As far as I know, none of the 4th gen cars got 3.73's. The lowest gear they got was 3.42.

Oct 23, 2006 | 07:14 AM

DJP87Z28

Supreme Member

Joined: Mar 2003

Posts: 4,771

Likes: 15

From: Florida

Car: 1987 Black IROC-Z (SOLD)

None, not a stock gear ratio on any 4th gen rear axle.

Oct 23, 2006 | 02:39 PM

Orr89RocZ

Supreme Member

iTrader: (20)

Joined: Sep 2003

Posts: 25,895

Likes: 429

From: Pittsburgh PA

Car: 89 Iroc-z

Engine: 555 BBC Turbo

Transmission: TH400

Axle/Gears: MWC 9” 3.00

https://www.thirdgen.org/forums/tran...-gen-rear.html

rear end info.... only manual cars got 3.42s and none higher. if you want 3.73 your gonna have to buy some

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

take off parts....trying to keep 'em local

1992rs/ss

NW Indiana and South Chicago Suburb

Jan 31, 2025 05:10 PM

[IL] 1990 Camaro RS Modified

Frozer!!!

Camaros for Sale

Jan 19, 2024 04:55 PM

[IL] 82-92 alum driveshaft, '92 spindles, spare tire, wheel adapters

1992rs/ss

Engine/Drivetrain/Suspension Parts for Sale

Jan 28, 2016 09:58 PM

Tick Master cylinder ?

redmaroz

LTX and LSX

Aug 16, 2015 11:40 PM

prop valve questions that haven't been answered

THABADGUY

Brakes

Aug 11, 2015 03:43 AM

Reply Share

First
Prev
1 / 1
Next
Last