Rear Differential swap
Thread Starter
Instructor
Joined: Jun 2010
Posts: 133
Likes: 0
From: OOB ME
Rear Differential swap
I looked under the search tab and couldnt find what i was looking for.. I currently have 2.73's in the rear differential of my c5.. i was looking to swap to 3.42's from a manual c5.. Just wanted to make sure that it is a simple swap just Remove and Reinstall.. Dont want to buy a differential off a manual vehicle and get stuck with it..So can the stock one just be removed and i reinstall the 3.42's exactly same way? any programming need to be done to vehicle after
Le Mans Master
Joined: May 2007
Posts: 5,393
Likes: 17
From: Belleville Mich.
The 3:42 will bolt right in. You will have to purchase a few parts to make it seal correctly, without any leaks. (O ring & seal.)
I'm assuming that you have an auto tranny. You will have to remove the seal plate from your diff and reinstall onto the 3:42. No Biggie.
You really need to purchase a 3 book set of Service manuals to know what the job incurs & to do the work safely. Good luck,
I'm assuming that you have an auto tranny. You will have to remove the seal plate from your diff and reinstall onto the 3:42. No Biggie.
You really need to purchase a 3 book set of Service manuals to know what the job incurs & to do the work safely. Good luck,
Thread Starter
Instructor
Joined: Jun 2010
Posts: 133
Likes: 0
From: OOB ME
Friends dad is a foreman at local chevy dealer so work would be done by him, Now the moer that i look into it... just checked and diff under the car is a 3.15, now when i look it it it doesnt make since from 3.15 to 3.42's.... Maybe just a stall converter and call it good enough.. like a yank 3200 lockup converter..? anyone? i have run 12.822 at 108 with custom tune vararam ls6 manifold. Long tube highflow cats and axle back... for sure i will be doing a camshaft next year as i have already bought everything,
Will a 3200 stall and a camshaft get me to low 12's or high 11's? best was 12.822 on street tires
Will a 3200 stall and a camshaft get me to low 12's or high 11's? best was 12.822 on street tires
Burning Brakes
Joined: Oct 2001
Posts: 919
Likes: 1
From: Portland area OR
I haqve a Z06 3.42 diff with an FLP Level IV tranny and Vigilante 2800 stall TC in my 02 vert. Great performance with my 580 rwhp! Changing form a 2.73 to a 3.42 will result in an approximate 25% increase in rpms while cruising and a corresponding reduction in gas milage.
Geaux Tigers!!!!
Joined: Nov 2007
Posts: 2,732
Likes: 424
From: DeRidder LA
St. Jude Donor '08 thru '26
