Rear end gear

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Oct 4, 2003 | 04:06 PM

paul5.0

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Banned

Joined: Jun 2003

Posts: 49

Likes: 0

From: Fla

Car: trans am 1991

Engine: 305

Transmission: 700r4

Rear end gear

Whats the stock rear end gear ratio on my 1991 Formula V8 305 TBI. 700R4?

Oct 4, 2003 | 05:16 PM

novass

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iTrader: (1)

Joined: Nov 2002

Posts: 1,132

Likes: 1

From: Grand Island, NY

Car: 1990 Formula

Engine: 305 TPI

Transmission: WC T5

My guess would be 2.73.....my 90 305 tbi was... but that is only a guess.

Oct 5, 2003 | 11:00 AM

ede

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Joined: Aug 1999

Posts: 14,811

Likes: 1

From: Jackson County

pull the cover and look, only 100% accurate way to know. what you're really asking is what do i have not what did 1000s of thses cars leave the factory with isn't it?

Oct 5, 2003 | 12:12 PM

GTA4ME

Supreme Member

Joined: Apr 2003

Posts: 1,265

Likes: 2

From: Hill AFB, Utah

Car: 1988 Trans Am GTA Notchback

Engine: 305ci, 5.0L, TPI, HO

Transmission: Borg Warner T5 5-Speed

Axle/Gears: 9-Bolt Positraction Rear w/3.45 Grs

Look at your RPO codes in the center console, It should be there.

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