Drop a c6 auto trans into 2004 c5?
Thread Starter
5th Gear
Joined: Apr 2009
Posts: 5
Likes: 0
Drop a c6 auto trans into 2004 c5?
Has anyone out there put the new 4L65E automatic transmission into the C5?
If so, is it direct and easy just like a reg tranny change on the C5?
Thanks Corvette People!
If so, is it direct and easy just like a reg tranny change on the C5?
Thanks Corvette People!
Burning Brakes
Joined: Aug 2006
Posts: 1,217
Likes: 5
From: Stark County Ohio
The 4L65E is a FOUR speed transmission from a 2005 C6.
I have NO experience with using this transmission in place of the 4L60E.
If you want my "Guess" I would think it is possible with minor modifications.
Six-speed auto from a 2006 and up - no way. Maybe dropping the entire C6 drive train in along with the computer, etc. would work. But why - with all the pain of converting EVERYTHING.
I have NO experience with using this transmission in place of the 4L60E.
If you want my "Guess" I would think it is possible with minor modifications.
Six-speed auto from a 2006 and up - no way. Maybe dropping the entire C6 drive train in along with the computer, etc. would work. But why - with all the pain of converting EVERYTHING.
Burning Brakes
Joined: Aug 2006
Posts: 1,217
Likes: 5
From: Stark County Ohio
The first year C6 (2005) used a FOUR speed automatic. 4L65E (4 is for FOUR speed)
EDIT -
P.S. The service manual refers to the 2005 auto trans as a 4L60E/4L65E
Le Mans Master
Joined: Nov 2005
Posts: 6,993
Likes: 25
So what exactly would be the point of swapping 1-4 speed auto for another here then? I assumed the original poster meant the 6 speed if he was going through the hassle (probably wants the paddle shifter like the new autos).
Burning Brakes
Joined: Sep 2003
Posts: 866
Likes: 22
From: Savannah GA
4- 4 forward gears
L-means trans is installed lengthwise IOW RWD (T is for FWD)
60-scale for it's torque capacity. 80 is stronger than a 60, etc
E- electronic control
This means a 4L60E is slightly weaker than a 4L65E. From what I understand, it's mostly the same transmission with a few minor adjustments and improvements to make it stronger than the 4L60-E. I've heard of folks upgrading their 60's with 65 parts. I would say it would work fine, but do your research. There could be mounting differences or connector differences or incompatabilities too since it's electronic.
I would say call a tranny shop that deals with lots of C5's and C6's. They should be able to steer you in the right direction
L-means trans is installed lengthwise IOW RWD (T is for FWD)
60-scale for it's torque capacity. 80 is stronger than a 60, etc
E- electronic control
This means a 4L60E is slightly weaker than a 4L65E. From what I understand, it's mostly the same transmission with a few minor adjustments and improvements to make it stronger than the 4L60-E. I've heard of folks upgrading their 60's with 65 parts. I would say it would work fine, but do your research. There could be mounting differences or connector differences or incompatabilities too since it's electronic.
I would say call a tranny shop that deals with lots of C5's and C6's. They should be able to steer you in the right direction
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
5th Gear
Joined: Apr 2009
Posts: 5
Likes: 0
The point
as other people have said, i read that the 2005 c6 tranny is a slightly better design. i need to work on mine as i have lost gears due to wear in the valve body. so i thought why not go a year newer if it was straight forward.
Burning Brakes
Joined: Aug 2006
Posts: 1,217
Likes: 5
From: Stark County Ohio
