Transmissions and Drivetrain Need help with your trans? Problems with your axle?

.73 ratio 5th gear

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Old 01-14-2023, 08:46 PM
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Car: 89 GTA
Engine: 350
Transmission: auto
Axle/Gears: 3.23 BW 9 bolt
.73 ratio 5th gear

What was the fifth drive and driven gear tooth count in the t5's that had the .73 5th gear ratio?
Old 01-15-2023, 12:55 PM
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Car: 1985 Trans Am
Engine: Chevy 355
Transmission: T5 NWC
Axle/Gears: 3.23
Re: .73 ratio 5th gear

Depends on your rear end gear ratio. It's outlined in a sticky on this thread, here's the link for convenience.

https://www.thirdgen.org/forums/tran...ve-driven.html

Old 01-15-2023, 10:06 PM
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Car: 89 GTA
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Transmission: auto
Axle/Gears: 3.23 BW 9 bolt
Re: .73 ratio 5th gear

Thanks, but that is for the vss gears. I'm asking about the actual 5th gear.
Old 01-16-2023, 07:58 PM
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jmd
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Re: .73 ratio 5th gear

Depends on which T5.
The headset gears of the mandrive and countershaft can change fifth tooth counts and the mainshaft changes which driven gear, so there were multiple fifth driven / drive sets that can make 0.73.
Call Hanlon Motorsports, give your service tag. Say you'd like to buy 5th drive / driven to go 0.73 ratio 5th.
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