84 Z28 3.73 gears swap ?
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Joined: Apr 2001
Posts: 246
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From: Destin, FL
84 Z28 3.73 gears swap ?
Will they fit in my 89 GTA that currently has 3.27 gears and disc brakes...the 84 Z28 has drums, but I didn't think that mattered.
I've had this car for a while, but thought it had 3.23's until I decoded the RPO numbers.
Seems like it would be a performance enhancement to upgrade my 3.27s to 3.73s
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89 GTA Trans Am L98
Wins: 2 Early 90s Stang GT, 4 wheeler, Chevy Malibu
Losses: New Camaro...bastard
I've had this car for a while, but thought it had 3.23's until I decoded the RPO numbers.
Seems like it would be a performance enhancement to upgrade my 3.27s to 3.73s
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89 GTA Trans Am L98
Wins: 2 Early 90s Stang GT, 4 wheeler, Chevy Malibu
Losses: New Camaro...bastard
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
You cant put the 3.73 10-bolt gears in your 3.27 9-bolt, they are totally different. But you can put the whole 84 rear end under your 89, but you'd lose the disc brakes. I suggest getting a set of 3.70 9-bolt gears, but they're not cheap.
http://www.ring-pinion.com/
http://www.drivetrainspecialists.com/
http://www.calgear.com/
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West Coast GM Shootout 2001!
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=-
http://www.ring-pinion.com/
http://www.drivetrainspecialists.com/
http://www.calgear.com/
------------------
West Coast GM Shootout 2001!
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=-
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