Three rib differential question
Thread Starter
Racer
Joined: May 2012
Posts: 427
Likes: 10
From: Texas
Three rib differential question
I'm looking for a differential to replace the one in my Z and want the strongest unit. Is a three rib not out off a Z just as strong as the Z's unit other then the shot pinned gears in them. I plan on running a 3:90 and would like to build the unit and replace rather then just changing the gear in the car.
Thx R
Thx R
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
A three rib is a three rib. There was nothing made that was special or any stronger. Trust me, When you severely abuse the drive train, ANY C5 case will not survive the thrashing
I believe it was DTE that tried to make an IRON diff case for the all out HP/TQ beast but, I don't think they ever followed through; ($$$$$????)
While you are in the differential, take a look at this post and consider up-grading yours to C6 ZO6 parts:
C5 . “Its Go Time” Complete Differential Rebuild and SET UP: https://www.corvetteforum.com/forums...ld-how-to.html
The replacement of the output shafts and clutches do not require any additional GEAR/BEARING SET UP.
Bill
I believe it was DTE that tried to make an IRON diff case for the all out HP/TQ beast but, I don't think they ever followed through; ($$$$$????)
While you are in the differential, take a look at this post and consider up-grading yours to C6 ZO6 parts:
C5 . “Its Go Time” Complete Differential Rebuild and SET UP: https://www.corvetteforum.com/forums...ld-how-to.html
The replacement of the output shafts and clutches do not require any additional GEAR/BEARING SET UP.
Bill
Thread Starter
Racer
Joined: May 2012
Posts: 427
Likes: 10
From: Texas
A three rib is a three rib. There was nothing made that was special or any stronger. Trust me, When you severely abuse the drive train, ANY C5 case will not survive the thrashing
I believe it was DTE that tried to make an IRON diff case for the all out HP/TQ beast but, I don't think they ever followed through; ($$$$$????)
While you are in the differential, take a look at this post and consider up-grading yours to C6 ZO6 parts:
C5 . “Its Go Time” Complete Differential Rebuild and SET UP: https://www.corvetteforum.com/forums...ld-how-to.html
The replacement of the output shafts and clutches do not require any additional GEAR/BEARING SET UP.
Bill
I believe it was DTE that tried to make an IRON diff case for the all out HP/TQ beast but, I don't think they ever followed through; ($$$$$????)
While you are in the differential, take a look at this post and consider up-grading yours to C6 ZO6 parts:
C5 . “Its Go Time” Complete Differential Rebuild and SET UP: https://www.corvetteforum.com/forums...ld-how-to.html
The replacement of the output shafts and clutches do not require any additional GEAR/BEARING SET UP.
Bill
Thx Bill
Great write up, very well done!!
Melting Slicks
Joined: Mar 2009
Posts: 2,300
Likes: 115
From: Odessa FL
St. Jude Donor '10-'12-'13-'14-'15-'16-'17
I am interested in this as well. Don’t mean to hi-jack the thread, but this is related. I used the single rib diff case that came standard on my 2000 MN6 coupe, and had all the internals upgraded to C6 Z06 parts as well as having 3:90 gears installed. My question is how much stronger is the three rib case compared to the single rib versions? Differential braces aside, at what horsepower/torque level is the three rib a must? Understanding that you can abuse a diff at any HP’TQ level, wheel hop, extreme launches, etc. 
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
I am interested in this as well. Don’t mean to hi-jack the thread, but this is related. I used the single rib diff case that came standard on my 2000 MN6 coupe, and had all the internals upgraded to C6 Z06 parts as well as having 3:90 gears installed. My question is how much stronger is the three rib case compared to the single rib versions? Differential braces aside, at what horsepower/torque level is the three rib a must? Understanding that you can abuse a diff at any HP’TQ level, wheel hop, extreme launches, etc.
