swapping rear from 3.08 to 3.42 need help with speedo gears.

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May 16, 2001 | 08:00 PM

eddie89TA

Thread Starter

Member

Joined: Aug 1999

Posts: 233

Likes: 0

From: New Britain Ct. USA

Car: 89GTA

Engine: 355TPI Edelbrock heads, base. SLP r

Transmission: TCI streetfighter 700r4

Axle/Gears: B/W3:27

swapping rear from 3.08 to 3.42 need help with speedo gears.

my buddy jim got a 87 iroc with 5.0 tpi and 5speed tranny (bone stock) 3.08 drum posi gear. the 3.08 sh*t the bed

and we got a mint 3.42 posi drum ready to go in it. but all we need is are the speedo gears..which ones do we need color,teeth count, part numbers would b great. also i 4got which one is driven and which one is the drive gear. thanks for the info ed

May 17, 2001 | 12:28 AM

KED85

Supreme Member

Joined: Jan 2001

Posts: 7,604

Likes: 1

From: ****SoCal, USA****

Go to the dealer.
So much securerd answer.
They'll even give ya a illustrated print out!

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Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

May 17, 2001 | 01:40 AM

Kevin91Z

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iTrader: (1)

Joined: Jul 1999

Posts: 10,950

Likes: 26

From: Orange, SoCal

Car: 1990 Pontiac Trans Am

Engine: 355 TPI siamesed runners

Transmission: Tremec T56

Axle/Gears: 12-Bolt 3.73

3.42 gears in a T5 with stock tires is a 7 tooth blue drive gear and a 19 tooth white driven gear.

EDIT: Search this forum and I bet you can find the part numbers too.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

[This message has been edited by Kevin91Z (edited May 16, 2001).]