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Old 03-16-2013, 11:25 AM   #1
Marty Knox
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Default Front Wheel Drive - Final Drive Ratio

I am wondering what you do on a FWD car to change the final drive ratio. On a rear wheel drive you change the rear gears - what can you do on a FWD? Don't some have chain - can you change the sprockets?
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Old 03-16-2013, 07:04 PM   #2
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Default Re: Front Wheel Drive - Final Drive Ratio

Yes
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Old 03-18-2013, 12:36 AM   #3
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Default Re: Front Wheel Drive - Final Drive Ratio

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Originally Posted by Marty Knox View Post
I am wondering what you do on a FWD car to change the final drive ratio. On a rear wheel drive you change the rear gears - what can you do on a FWD? Don't some have chain - can you change the sprockets?
Marty, the GM T125 and T440 (and electronic versions ) use different final drive planets, combined with different chain drive and driven sprockets to attain a variety of ratios.
You can put together a 3.73 final with factory parts.
... Don't know about Ford and Chrysler.
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Old 03-18-2013, 06:11 AM   #4
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Default Re: Front Wheel Drive - Final Drive Ratio

The Chrysler 3sp autos had several different FD ratios and transfer gear sets to mix and match. Also some aftermarket transfer gear sets were made.
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