Differences in 2005 and 2003 4l60e?
Differences in 2005 and 2003 4l60e? I recently bought a 2003 Chevrolet Tahoe LT. It has a 5.3 with a 4L60e, high miles and the trans started slipping 3rd and 4th which is common from what I've read. The guy I bought it from gave me a low mile 4L60e from a 2005 2wd Silverado. I know I'll have to get the output shaft changed to fit the transfer case but are there any other differences? I've looked at rebuild kits and stuff and some read 1997-2003 and 2004+. Will I run into any issues putting the 2005 4L60e in my 2003? Any wiring/electrical differences?
I appreciate any help.
Thanks,
Eric
I appreciate any help.
Thanks,
Eric
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
The differences for V8 (300mm input shaft LS version) 4L60E between 1998 and 2004 are tiny and should all be interchangeable. Certainly no wiring or electrical differences. Around February 2005 the input speed sensor (ISS) was introduced, but such a trans will work fine in older year cars because the speed sensor will be ignored. Therefore, you are good to go.
If you decide to rebuild it while changing the output shaft, get a 4L65E rebuild kit as the only difference is 7 frictions for the 3/4 clutch and and an extra $10. You may need to open the trans to determine if it has ISS as a few parts related to the pump (e.g. pump gasket) will be different in the rebuild kit.
If you decide to rebuild it while changing the output shaft, get a 4L65E rebuild kit as the only difference is 7 frictions for the 3/4 clutch and and an extra $10. You may need to open the trans to determine if it has ISS as a few parts related to the pump (e.g. pump gasket) will be different in the rebuild kit.
The differences for V8 (300mm input shaft LS version) 4L60E between 1998 and 2004 are tiny and should all be interchangeable. Certainly no wiring or electrical differences. Around February 2005 the input speed sensor (ISS) was introduced, but such a trans will work fine in older year cars because the speed sensor will be ignored. Therefore, you are good to go.
If you decide to rebuild it while changing the output shaft, get a 4L65E rebuild kit as the only difference is 7 frictions for the 3/4 clutch and and an extra $10. You may need to open the trans to determine if it has ISS as a few parts related to the pump (e.g. pump gasket) will be different in the rebuild kit.
If you decide to rebuild it while changing the output shaft, get a 4L65E rebuild kit as the only difference is 7 frictions for the 3/4 clutch and and an extra $10. You may need to open the trans to determine if it has ISS as a few parts related to the pump (e.g. pump gasket) will be different in the rebuild kit.
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
You are correct. Putting a non-ISS trans into a newer vehicle will cause problems although a tune might overcome it.
Not sure what you mean by stage 2 and up but in 2009 things changed a bit the Manifold pressure sensor on the valve body went away and some other things , You will need to US an 09 up trans , Of note we have these in all levels 1-2-3 heavy hauler and such. We do require a core return.
__________________
Registered User
Joined: Feb 2018
Posts: 1
Likes: 0
Will this fit my truck Trending Topics
TECH Junkie
Joined: Nov 2013
Posts: 3,913
Likes: 366
From: White Bear, Mn
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Registered User
Joined: Apr 2019
Posts: 1
Likes: 0
Differences I took 2 trucks on trade for another. One being a 99 GMC 1500 4x4 and the other a 2004 GMC 1500 4x4 with real low miles. The 99 has a bad transmission. Will the tranny feo. The 2004 work in the 99? The 04 is just a parts truck intended to be used for a c10 build
