c5 ring and pinion change?
c5 ring and pinion change? why is it that if we want to change our diff ratio's we got to buy the whole diff and not just a ring and pinion? i did find some 3.90 ratio ring and pinion sets online but is it to difficult to install? is that why all you ever see is complete diff's?
its not a pain in the as but u need some special tools.... about $600 worth I just did mine... but i have been doing gears for a little while now... this was my firct C5 diff and it was not complicating but time consuming.... 
On The Tree
Joined: Feb 2006
Posts: 131
Likes: 0
From: rome
Originally Posted by mead955i
why is it that if we want to change our diff ratio's we got to buy the whole diff and not just a ring and pinion? i did find some 3.90 ratio ring and pinion sets online but is it to difficult to install? is that why all you ever see is complete diff's?
TECH Regular
Joined: Jan 2007
Posts: 408
Likes: 0
From: boostville
I've got stock 3.42's in my rear and was thinking about swapping 3.90's instead because @ the end of the 1/4mile in 4th gear I'm only spinning @ 6k.
Are there any detailed instructions for the swap? I have the trans/rear out now so it would be an excellent time to do it.
Are there any detailed instructions for the swap? I have the trans/rear out now so it would be an excellent time to do it.
On The Tree
Joined: Feb 2006
Posts: 131
Likes: 0
From: rome
Originally Posted by alwaysinboost
I've got stock 3.42's in my rear and was thinking about swapping 3.90's instead because @ the end of the 1/4mile in 4th gear I'm only spinning @ 6k.
Are there any detailed instructions for the swap? I have the trans/rear out now so it would be an excellent time to do it.
Are there any detailed instructions for the swap? I have the trans/rear out now so it would be an excellent time to do it.
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Ok, here's the deal. It's not a bolt in and go to do a gear swap. The C5 diff is more complex than a standard differential in say a camaro or mustang. I have personally been inside one to replace the output shafts with hardened units.
There's not that many people with experience that are familiar with it, I'd like to find someone besides DTE that is.
There's not that many people with experience that are familiar with it, I'd like to find someone besides DTE that is.
Staging Lane
Joined: Jul 2002
Posts: 57
Likes: 0
From: Ohio
the problem is this...
removing the carrier (for either complete swap or R&P gear change) is a complex and time consuming ordeal. It's much more involved than on a F-Body.
So it's important to do the real axle ratio upgrade right... THE FIRST TIME. Many just opt for a new or professionally rebuilt carrier; for peace of mind. You don't want to be "shade tree experimenting" with the C5 carrier; as you'll tire quickly due to the indepth R&R procedure.
http://mikemercury.home.att.net/342.htm
removing the carrier (for either complete swap or R&P gear change) is a complex and time consuming ordeal. It's much more involved than on a F-Body.
So it's important to do the real axle ratio upgrade right... THE FIRST TIME. Many just opt for a new or professionally rebuilt carrier; for peace of mind. You don't want to be "shade tree experimenting" with the C5 carrier; as you'll tire quickly due to the indepth R&R procedure.
http://mikemercury.home.att.net/342.htm
well im kinda on the same page i would like to know what is involved to change the gears ive had a couple ALL the way part but i nvr changed the gears because nobody could give me information on it. if somebody have info on how to change them that would be great!
Just wondering if anyone has found a detailed "how-to" for this topic???
It might be hard or complex but where would we be if all of us thought that way and just stayed away. I on the other hand like to take on challenges like these. There's only one way to learn right.
It might be hard or complex but where would we be if all of us thought that way and just stayed away. I on the other hand like to take on challenges like these. There's only one way to learn right.
Ok, here's the deal. It's not a bolt in and go to do a gear swap. The C5 diff is more complex than a standard differential in say a camaro or mustang. I have personally been inside one to replace the output shafts with hardened units.
There's not that many people with experience that are familiar with it, I'd like to find someone besides DTE that is.
There's not that many people with experience that are familiar with it, I'd like to find someone besides DTE that is.
i dont think youll find a detailed HOW TO on this topic. Use the search function on the corvetteforum.com if youd like. But most that have tried this on their own have failed when setting up the ring gear and pinon. The C5 diff is almost a backwards unit. Ive been inside mine to install the LPE hardened output shaft and my ECS diff brace. My father was my helping hand (graduate for WyoTech and Machinist for UPRR) who has done plenty of gear swaps in Ford 9" GM 10 and 12bolts and wanted NOTHING to do with the gear swap. Hell i even had acess to the Kent Moore tools. But who would want to install a new set of gears to end up spending 8+ hours pulling your old carrier out to put a WHOLE new unit back in when things didnt work out????
That is why most just buy the whole unit.
That is why most just buy the whole unit.
^^^^^^^ Amen to that! 
When my "professionally built" complete diff **** the bed, I had a local friend of mine who does transmissions and rear ends rebuild it with hardened shafts, gear and upgraded posi parts and its been fine ever since. It's not rocket science, and the diff R &R isn't too bad if you have access to a 2 post lift.
Jimbo
When my "professionally built" complete diff **** the bed, I had a local friend of mine who does transmissions and rear ends rebuild it with hardened shafts, gear and upgraded posi parts and its been fine ever since. It's not rocket science, and the diff R &R isn't too bad if you have access to a 2 post lift.
Jimbo
i dont think youll find a detailed HOW TO on this topic. Use the search function on the corvetteforum.com if youd like. But most that have tried this on their own have failed when setting up the ring gear and pinon. The C5 diff is almost a backwards unit. Ive been inside mine to install the LPE hardened output shaft and my ECS diff brace. My father was my helping hand (graduate for WyoTech and Machinist for UPRR) who has done plenty of gear swaps in Ford 9" GM 10 and 12bolts and wanted NOTHING to do with the gear swap. Hell i even had acess to the Kent Moore tools. But who would want to install a new set of gears to end up spending 8+ hours pulling your old carrier out to put a WHOLE new unit back in when things didnt work out????
That is why most just buy the whole unit.
That is why most just buy the whole unit.
Just my .02 cents
I did the ring and pinion in my 2000 c5 and i would never do it again...My local shop did the install and the gear whined like a bitch and sounded terrible at a cruise...It made it aggravating to drive and pretty much caused me to get rid of the car....If your going to do something to a vette, do it right!!You will most likely regret it and spend as much as replacing the whole unit...Just my 2
I did the ring and pinion in my 2000 c5 and i would never do it again...My local shop did the install and the gear whined like a bitch and sounded terrible at a cruise...It made it aggravating to drive and pretty much caused me to get rid of the car....If your going to do something to a vette, do it right!!You will most likely regret it and spend as much as replacing the whole unit...Just my 2
Maybe the clearance for the gears were off. How did the contact pattern look when you check the gears?