3.23 to 3.42

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Apr 27, 2002 | 07:54 AM

WS6Formula350

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Joined: Oct 2001

Posts: 115

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From: long island

3.23 to 3.42

If i were to change thegears in my rear from 3.23 to 3.42 what would i need to make my speedo read correctly

Apr 27, 2002 | 09:13 AM

Mark A Shields

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Joined: Jan 2001

Posts: 7,164

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From: Someone owes me 10,000 posts

Car: 99 Formula

Engine: LS1

Transmission: T56

Axle/Gears: 342

Just go to a GM dealer and tell them you need the speedo gear for 3:42s.

Apr 27, 2002 | 03:21 PM

WS6Formula350

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Joined: Oct 2001

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From: long island

Thank you. That's what i thought bu just wanted to make sure

Apr 28, 2002 | 04:52 AM

Pro Built Automatics

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Joined: Jul 1999

Posts: 3,479

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From: Calimesa, California, U.S.

I guess you already have the 3.42's, if you do not I would not make the change, as there is really nothing to be gained.

Apr 28, 2002 | 11:05 PM

cp87GTA

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Joined: May 2001

Posts: 745

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From: springfield,IL

Car: T/A / Grand Am

Engine: 383 SBC

Transmission: glide

Axle/Gears: 9" ford 5.67

I agree with Pro Built. Unless your 323s are broken, I wouldn't do the swap. Very expensive, unless you can do it yourself. Even if you can it wouldn't be worth the labor to do so. Dout if you could even feel any differance. Now 373s or 410s would be a differant story.