gearing change c5
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 829
Likes: 2
From: Arlington Heights Illinois
gearing change c5
I have a 2004 C5 with SC and forged engine. I am thinking of changing the gearing to 3.42 or 3.7+. Good idea? What should I expect to spend($ parts and install)?
Thanks in advance for the advice!
Thanks in advance for the advice!
Uber Waxer
Joined: May 2004
Posts: 8,651
Likes: 5
From: Hanover MD
Cruise-In 8-9-10-11 Veteran
CI 9, 10 & 11 Car Show Winner
St. Jude Donor '08-'10
3.42's and a 2800 or 3000 stall and that car will be an animal!
parts, it depends on if you get a hardned half shaft or any other heavy duty parts. a good converter will set you back 700-900 bucks. the install, i would expect a good 600 or more because they have to take the rear, trans and tq tub out as well as the h-pipe or x-pipe off.
parts, it depends on if you get a hardned half shaft or any other heavy duty parts. a good converter will set you back 700-900 bucks. the install, i would expect a good 600 or more because they have to take the rear, trans and tq tub out as well as the h-pipe or x-pipe off.
Supporting Tuner
Joined: Sep 2004
Posts: 51,896
Likes: 39
From: ================== Houston, Texas www.englandgreen.com ================== Necessary Evil™ __________
CI 6-7-8-9-10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14
I'm running 3.90s, SC, 3600 stall and big cam.
The "safe" road is 3.42 - it all depends on your driving style, engine mods and what you want from your car. Traction will be a problem, no matter what you get, unless you go to 2.73
The "safe" road is 3.42 - it all depends on your driving style, engine mods and what you want from your car. Traction will be a problem, no matter what you get, unless you go to 2.73
Melting Slicks
Joined: Jan 2005
Posts: 2,409
Likes: 34
From: St. Louis Missouri
I just went through this. I paid $1060.00 for a brand new Z06 3.42 rear, $67 for GM synthetic Lube, $300.00 for the installation, and $75 to have a tuner reflash the PCM to recognize the 3.42 gear change. I went with a new carrier, because I previously had a bad experience with a used one that ended up costing me $300.00 to install and $300.00 have taken back out because it was making noise. What a PITA that was.
