my trans am wheels
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Joined: May 2000
Posts: 419
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From: Parkersburg, IA, U.S.
Car: Trans Am
Engine: L69
Transmission: T5
Axle/Gears: 3.73
my trans am wheels
They are 245 45 17 x 8 fronts and 275 40 17 x9 rears made by custom wheels market..


Last edited by kjgroen; May 26, 2010 at 09:29 AM.
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Joined: Apr 2009
Posts: 2,852
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From: Scottsdale, AZ
Car: 89 GTA/93 S13/91 Si
Engine: 5.7 350 TPI
Transmission: 700R4
Axle/Gears: 3.23
Thread Starter
Member
Joined: May 2000
Posts: 419
Likes: 0
From: Parkersburg, IA, U.S.
Car: Trans Am
Engine: L69
Transmission: T5
Axle/Gears: 3.73
Junior Member
Joined: Jul 2009
Posts: 43
Likes: 0
From: Huron, South Dakota
Car: 1985 Trans Am 1988 Chevy c1500
Engine: 5.7 v8 /4.3 v6
Transmission: 700R4
Axle/Gears: 3.08 & ?
Re: my trans am wheels
how does changing tires like that effect your spedometer, and how do you fix it so that it still reads properly? I had that problem in my Pickup when I bought it, the PO had too SMALL of tires on it....
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: my trans am wheels
I went from 245/50R16 to 285/40R17 to 315/35R17 & my speedometer has read just fine with each tire change.
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Thread Starter
Member
Joined: May 2000
Posts: 419
Likes: 0
From: Parkersburg, IA, U.S.
Car: Trans Am
Engine: L69
Transmission: T5
Axle/Gears: 3.73
Re: my trans am wheels
on mine the tire size was almost identical to the original size, otherwise change the speedo gear/ gears
Junior Member
Joined: Jul 2009
Posts: 43
Likes: 0
From: Huron, South Dakota
Car: 1985 Trans Am 1988 Chevy c1500
Engine: 5.7 v8 /4.3 v6
Transmission: 700R4
Axle/Gears: 3.08 & ?
Re: my trans am wheels
mkay, I understand now, I thought that the biggest number in the tire measurement, ie. 245, 275, 315, meant the diameter.
Banned
iTrader: (12)
Joined: Jul 1999
Posts: 12,212
Likes: 13
From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: my trans am wheels
50% of 245
40% of 287
35% of 315....All the same overall diameter.
As the width gets wider, the sidewall height drops, to maintain the overall diameter.
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