tranny gear for 3.73's

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Oct 10, 2001 | 02:31 PM

NufNuffZ28

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Supreme Member

iTrader: (10)

Joined: Dec 2000

Posts: 1,954

Likes: 68

From: NC

Car: 1987 Iroc

Engine: 357 Single plane and a Ysi vortech

Transmission: T56

Axle/Gears: 3.50 9"

tranny gear for 3.73's

I have a 1986 Iroc that came with a 3.23 gear. It now has 3.73's. I need to change the gear in the tranny correct? Any one have the part number?

Thanks

Chris

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1986 305 TPI
8.0 @88 in the 1/8
**Soon to be 355

Oct 10, 2001 | 05:52 PM

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

Do a search on this board for "3.73 speedo" and you'll find it. You need the ones for a mechanical speedo.

------------------
1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-