[living with 4.10s] looking for experience
Thread Starter
Le Mans Master
Joined: May 2005
Posts: 9,585
Likes: 1
From: Prepare yourself, for a pride obliterating bich smack. Fairfax, VA
St. Jude Donor '06-'07-'08
SEC > BCS 4 St. Judes '09
[living with 4.10s] looking for experience
i am about to switch over to either 4.10's or 3.90's in my C6. i was wondering if you C5 guys who have done the 4.10's in your cars could give me your long term evaluations on this mod. mine is currently my daily driver, but my commute is about .75 miles, so i am not worried about 1-2 hours of bumper to bumper traffic every morning. additionally, the C6 guys (God love 'em) seem to be overly conservative with thier new rides and tend to skoff at things like bullet exhausts, and mods in general, and as such, i havent gained much in the way of constructive feedback on thier forum. so i come to you wise and experienced C5 gurus for the advice i seek. i think the 4.10s might be a bit over the top, as my car will likely never see a 1/4 mile course, but i also think the 3.90's might be a bit too mild. if you have experience with either of these configurations, i would appreciate it if you could give me some of your thoughts.
thanks in advance!
thanks in advance!
Le Mans Master
Joined: Aug 2004
Posts: 9,770
Likes: 0
From: Sahuarita AZ
Honestly, you probably won't see that much difference between the 3.90s and the 4.10s - they both do a wonderful job at creating real interesting traction control issues for you. 
I have a similarly short commute and am certainly happy with my 4.10 install that I just had done in December.
About the C6 guys shunning the "modding scene", it's probably because the cars are so new. Give them some time to get used to their vehicles and they'll probably hit the modding scene as well. Although in their defense, I can understand them not wanting to accidently screw up their $70,000 Z06.
I have a similarly short commute and am certainly happy with my 4.10 install that I just had done in December. About the C6 guys shunning the "modding scene", it's probably because the cars are so new. Give them some time to get used to their vehicles and they'll probably hit the modding scene as well. Although in their defense, I can understand them not wanting to accidently screw up their $70,000 Z06.
Thread Starter
Le Mans Master
Joined: May 2005
Posts: 9,585
Likes: 1
From: Prepare yourself, for a pride obliterating bich smack. Fairfax, VA
St. Jude Donor '06-'07-'08
SEC > BCS 4 St. Judes '09
do you have any other mods? did you swap out the RFs for something stickier (PS2s)?
i'm not too interested in getting off the line any faster. i just want to have more pop available while rolling. something that'll snap my own neck back even when i know its coming.
as for the C6 guys, i know a bunch of them lurk over here so it was a nice chance for me to bust ***** a bit. most of them are just too old to appreciate bullets and neck snapping acceleration, i understand.
i'm not too interested in getting off the line any faster. i just want to have more pop available while rolling. something that'll snap my own neck back even when i know its coming.
as for the C6 guys, i know a bunch of them lurk over here so it was a nice chance for me to bust ***** a bit. most of them are just too old to appreciate bullets and neck snapping acceleration, i understand.
Le Mans Master
Joined: Aug 2004
Posts: 9,770
Likes: 0
From: Sahuarita AZ
Originally Posted by Mayonayze
do you have any other mods? did you swap out the RFs for something stickier (PS2s)?
I have a GHL exhaust, Halltech Stinger air intake and a Hurst short shifter.
Originally Posted by Mayonayze
i'm not too interested in getting off the line any faster. i just want to have more pop available while rolling. something that'll snap my own neck back even when i know its coming.
Race Director
Joined: Feb 2003
Posts: 11,133
Likes: 1
From: ~The DARKSIDE Group~
See my sig for a list of mods including 3.90's, my lattest mod. I chose the 3.90's as I still intend to do more performance mods.
If you're going to stay pretty stock then 4.10's make sense for you.
Good luck!
(PS, Howdy sdnet!)
If you're going to stay pretty stock then 4.10's make sense for you.
Good luck!
(PS, Howdy sdnet!)
Team Owner
Joined: Sep 2001
Posts: 23,283
Likes: 905
From: Lake Elsinore, CA
If you're not going to frequent the 1/4 scene then the 4.10's are definitely the way to go, IMO. I've had them more than two years and couldn't imagine going any higher (lower numerically) in gearing. There's about a 5% difference between them and the 3.90's so owners with high-hp setups and those with autos tend to stay away from the 4.10's. They're terriffic with a 6-speed and significant mods like I have, though. I'd dial it back a ratio or two if I were doing a s/c or tt setup. For a stock or h/c 6-speed, the 4.10's are the best addition you can make, IMO. They make driving so much more fun. 
FYI, here are the speed tables for 3.42, 3.73, 3.90 and 4.10 gears on a C5 6-speed.
Speed tables for C5 diffs
FYI, here are the speed tables for 3.42, 3.73, 3.90 and 4.10 gears on a C5 6-speed.
Speed tables for C5 diffs
Thread Starter
Le Mans Master
Joined: May 2005
Posts: 9,585
Likes: 1
From: Prepare yourself, for a pride obliterating bich smack. Fairfax, VA
St. Jude Donor '06-'07-'08
SEC > BCS 4 St. Judes '09
yes, i have a 6 speed and only a few minor bolt ons, with the potential to do some LT headers in the future. i suppose i might get to 390 rwhp at most.
thanks for all of your opinions!!!! 4.10s it is!!!
thanks for all of your opinions!!!! 4.10s it is!!!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
Cherish your Hopes...
Joined: Feb 2002
Posts: 13,072
Likes: 236
From: West Palm Beach FL
Cruise-In VII Veteran
St. Jude Donor '05-'06-'07
Originally Posted by Patches
If you're not going to frequent the 1/4 scene then the 4.10's are definitely the way to go, IMO. I've had them more than two years and couldn't imagine going any higher (lower numerically) in gearing. There's about a 5% difference between them and the 3.90's so owners with high-hp setups and those with autos tend to stay away from the 4.10's. They're terriffic with a 6-speed and significant mods like I have, though. I'd dial it back a ratio or two if I were doing a s/c or tt setup. For a stock or h/c 6-speed, the 4.10's are the best addition you can make, IMO. They make driving so much more fun.
FYI, here are the speed tables for 3.42, 3.73, 3.90 and 4.10 gears on a C5 6-speed.
Speed tables for C5 diffs
FYI, here are the speed tables for 3.42, 3.73, 3.90 and 4.10 gears on a C5 6-speed.
Speed tables for C5 diffs
...StuzVette is running 4.10:1 gears with Maggie and CAM mods...
I enjoy cruising about town and although I dont frequent the track...
...I get a lot of enjoyment there too
Getting 3.90 or 4.10's to stick will be an issue with either though...
Le Mans Master
Joined: Dec 2003
Posts: 7,506
Likes: 0
From: Hillsborough NJ
Originally Posted by EdsC5
I assume you have a 6 spd? Go with the 4.10's unless you plan to do big power upgrades later. I love mine. Best bang for the buck out there.
Absolutely one of the best mods one can do for their car.
Le Mans Master
Joined: Aug 2004
Posts: 9,770
Likes: 0
From: Sahuarita AZ
Originally Posted by c5BlackBeauty
Just out of interest whats the cost (parts/install) to move from 3.42 to 3.90 setup?