Change from 2:73 to 3:42 diff
Thread Starter
Instructor
Joined: Sep 2001
Posts: 104
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From: Longmont Co
Change from 2:73 to 3:42 diff
My brother is thinking of changing out his stock 2:73 rear end to a 3:42 on his 97 C5. I was wondering if anyone else has done this and what sort of improvements or problems they may have had . Also what this change over cost them.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Race Director
Joined: Feb 2001
Posts: 13,184
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From: NE Ohio
Cruise-In III Veteran
Re: Change from 2:73 to 3:42 diff (Mike Mercury)
Excellent site... I'll be using that as my guide when mine get done next week! :cheers:
Burning Brakes
Joined: Oct 1999
Posts: 835
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From: Fort Smith AR
Re: Change from 2:73 to 3:42 diff (vettasy)
I did this on my 97 and love it. It was 2 tenths faster than my friends 97 6 speed, and we both had air boxes.
Mallet did the install $700 but you can get it done cheaper. I used a hypertech to do the gear change for the ecm. O
ne of the vendors, I think Tbyrne is running a special on the gears. I also put in a Yank 2500 stealth converter $350.
Shawn
Mallet did the install $700 but you can get it done cheaper. I used a hypertech to do the gear change for the ecm. O
ne of the vendors, I think Tbyrne is running a special on the gears. I also put in a Yank 2500 stealth converter $350.
Shawn
Advanced
Joined: Apr 2002
Posts: 89
Likes: 0
From: NY
Re: Change from 2:73 to 3:42 diff (Mike Mercury)
I did this change to my 2002 after I had the car for only one month. I love the difference. Had it done at the Vette Doctors here in Long Island and they did a class A job.
As soon as my Powerloader II arrives, I will be taking it to the track to check out the 1/4 mile times. I am hoping for 12.9 as a goal. That's with the Powerloader, ZO6 Air Box Cover and the 3.42 Rear.
___________
2002 Black/Black A4 Coupe, 3.42 Rear, ZO6 Air Box Cover, Powerloader II (on order)
As soon as my Powerloader II arrives, I will be taking it to the track to check out the 1/4 mile times. I am hoping for 12.9 as a goal. That's with the Powerloader, ZO6 Air Box Cover and the 3.42 Rear.
___________
2002 Black/Black A4 Coupe, 3.42 Rear, ZO6 Air Box Cover, Powerloader II (on order)
Melting Slicks
Joined: Jun 2001
Posts: 2,743
Likes: 3
From: Davie Florida
Re: Change from 2:73 to 3:42 diff (wallstAL)
Ditto what WallstAL said, if you later decide to install a converter you will have to pay the labor charge twice. I had my gears and converter installed for $500.00 the converter really makes a big difference in performance. I chose the Pro Torque 2400, it drives like stock at normal speeds, but still gives you a very nice increase in performance.
98 A4
Powerloaded
Donaldson Blackwing
172 t.stat
Pro Torque 2400
3.42 gears
[Modified by Mitch C, 6:40 PM 5/3/2002]
98 A4
Powerloaded
Donaldson Blackwing
172 t.stat
Pro Torque 2400
3.42 gears
[Modified by Mitch C, 6:40 PM 5/3/2002]
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