1990 Formula Stock wheel size
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Joined: Sep 2004
Posts: 68
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From: Omaha, Ne
Car: It was a 90' firebird formula
Engine: It had 357 tbi
Transmission: Was 700r4 auto
Axle/Gears: Was 2.73
1990 Formula Stock wheel size
ok i have a question, on the 90 formulas what was the wheel size that came on those cars or what were the options i guess, cause when i bought my car it came with 15in firbird wheels that i thought were original, but the other day i got to lookin at the sticker inside the door and it says the tire size for this car from factory was a 245/50/16, so i was just curious to see why it would say that.
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
ALL Formulas from 1987 - 1992 recieved WS6, ALL WS6 cars from 1985 thru 1992 got 16" Rims 
John

John
Stock Formula wheels look similar to a 15" version, but are obviously 16", and have fake allen head screws around the perimeter of the wheel. Here is the only pic I currently have of my Formula with the stock wheels.
Thread Starter
Junior Member
Joined: Sep 2004
Posts: 68
Likes: 0
From: Omaha, Ne
Car: It was a 90' firebird formula
Engine: It had 357 tbi
Transmission: Was 700r4 auto
Axle/Gears: Was 2.73
awww, i see, thanks, man i wander why my car wouldnt have the stock rims on it, the stock ones look better than the 15 inch version, but i guess its hard to tell where and what a car has been through in ten years.
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Joined: Mar 2001
Posts: 14,298
Likes: 197
From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
Its quite possible the the rims were stolen, OR they were swapped out by an owner for an aftermarket set and sold. When he went to sell the car instead of paying for the more expensive set they used the lesser 15" rims...
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