C6 Posi Rear?
Thread Starter
Instructor
Joined: Oct 2007
Posts: 182
Likes: 0
From: New Jersey
C6 Posi Rear?
I'm just wondering, is there a way to install a posi unit in a c6 rear? Has this ever been done? Can it be done? I'm under the impression a posi traction rear end would allow BOTH of the rear wheels to grip equally and thus perhaps allow for the car hook up better off the line. Just wondering.... Thanks
Team Owner
Joined: Jan 2007
Posts: 22,136
Likes: 23
From: In the woods looking for my thrown putter.
St. Jude Donor '13, '15
If you can only get one wheel to spin in your vette, take it in, cause it's broke. 
Your car is already posi, a.k.a limited slip. They are the same.
Your car is already posi, a.k.a limited slip. They are the same.
Thread Starter
Instructor
Joined: Oct 2007
Posts: 182
Likes: 0
From: New Jersey
I can definitely get both tires to spin...
My question was more regarding what was my understanding of posi vs. limited slip. Someone correct me if I wrong but, in a limited slip you'll always have more output power to one side over the other (to allow for cornering radius on turns, etc.) in a true posi set-up equal power goes to both wheels.
My question was more regarding what was my understanding of posi vs. limited slip. Someone correct me if I wrong but, in a limited slip you'll always have more output power to one side over the other (to allow for cornering radius on turns, etc.) in a true posi set-up equal power goes to both wheels.
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
I can definitely get both tires to spin... My question was more regarding what was my understanding of posi vs. limited slip. Someone correct me if I wrong but, in a limited slip you'll always have more output power to one side over the other (to allow for cornering radius on turns, etc.) in a true posi set-up equal power goes to both wheels.
My question was more regarding what was my understanding of posi vs. limited slip. Someone correct me if I wrong but, in a limited slip you'll always have more output power to one side over the other (to allow for cornering radius on turns, etc.) in a true posi set-up equal power goes to both wheels.You can buy a ratcheting "detroit locker" rear for true posi but they are bad news on the street, clicking and clunking. You could also weld your spiders but not on a street car.
Your vette has posi, keep the recommended fluid in it. My posi went weak when I switched to Royal Purple and was "peg legging" only one wheel spinning. When I went back to recommended fluid it works great, posi all the time.
Dunno why I typed all that.
You can learn all you need to know about posi's here:http://auto.howstuffworks.com/differential.htm
Race Director
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
Posi-traction is a trade name from Chevy, Ford had Traction-Lok, Chrysler had Sure-Grip, (I might have those names wrong but you get the idea). They are all the same, clutches or cones in the differential to prevent one side from spinning at a substantially greater speed than the other. They apply pressure via clutches or cones to the spider gears on the axles to make them spin the same.
You can buy a ratcheting "detroit locker" rear for true posi but they are bad news on the street, clicking and clunking. You could also weld your spiders but not on a street car.
Your vette has posi, keep the recommended fluid in it. My posi went weak when I switched to Royal Purple and was "peg legging" only one wheel spinning. When I went back to recommended fluid it works great, posi all the time.
Dunno why I typed all that. You can learn all you need to know about posi's here:
http://auto.howstuffworks.com/differential.htm
You can buy a ratcheting "detroit locker" rear for true posi but they are bad news on the street, clicking and clunking. You could also weld your spiders but not on a street car.
Your vette has posi, keep the recommended fluid in it. My posi went weak when I switched to Royal Purple and was "peg legging" only one wheel spinning. When I went back to recommended fluid it works great, posi all the time.
Dunno why I typed all that.
You can learn all you need to know about posi's here:http://auto.howstuffworks.com/differential.htm
Burning Brakes
Joined: Apr 2008
Posts: 946
Likes: 0
From: 1BadC6 New Jersey
St. Jude Donor '08
Posi-traction is a trade name from Chevy, Ford had Traction-Lok, Chrysler had Sure-Grip, (I might have those names wrong but you get the idea). They are all the same, clutches or cones in the differential to prevent one side from spinning at a substantially greater speed than the other. They apply pressure via clutches or cones to the spider gears on the axles to make them spin the same.
You can buy a ratcheting "detroit locker" rear for true posi but they are bad news on the street, clicking and clunking. You could also weld your spiders but not on a street car.
Your vette has posi, keep the recommended fluid in it. My posi went weak when I switched to Royal Purple and was "peg legging" only one wheel spinning. When I went back to recommended fluid it works great, posi all the time.
Dunno why I typed all that. You can learn all you need to know about posi's here:
http://auto.howstuffworks.com/differential.htm
You can buy a ratcheting "detroit locker" rear for true posi but they are bad news on the street, clicking and clunking. You could also weld your spiders but not on a street car.
Your vette has posi, keep the recommended fluid in it. My posi went weak when I switched to Royal Purple and was "peg legging" only one wheel spinning. When I went back to recommended fluid it works great, posi all the time.
Dunno why I typed all that.
You can learn all you need to know about posi's here:http://auto.howstuffworks.com/differential.htm
Do you have synocromax in your trans?
Im glad I didnt put it in my rear!!
But I do have it in my trans. I didnt notice much
Mike
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Melting Slicks
Joined: Feb 2004
Posts: 3,307
Likes: 111
From: Tucson AZ
Joe G did a great job of explaining the different differentials.
On the race cars we use a "spool" instead of a differential. The spool has the ring gear bolted to it and both axles spline directly into each side. It does not have spider gears (differential pinions), axle side gears, or clutches and both axles spin exactly the same amount, but it hates any kind of sharp turns and would be impossible to live with in a street driven car.
Enjoy the limited slip/positraction your car came with.
On the race cars we use a "spool" instead of a differential. The spool has the ring gear bolted to it and both axles spline directly into each side. It does not have spider gears (differential pinions), axle side gears, or clutches and both axles spin exactly the same amount, but it hates any kind of sharp turns and would be impossible to live with in a street driven car.
Enjoy the limited slip/positraction your car came with.
Tech Contributor
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
Former Vendor
Joined: Dec 2005
Posts: 418
Likes: 5
From: Anderson Indiana
http://www.autotech.com/quaife/index2.htm
Here is a link to the Quaife ATB differentials. Click on the ATB differentials link on the top left. We've installed many of these with great results. They are a great improvement over the factory clutch type differentials. Give TJ a call if you are interested at 800-406-1109.
Todd
Here is a link to the Quaife ATB differentials. Click on the ATB differentials link on the top left. We've installed many of these with great results. They are a great improvement over the factory clutch type differentials. Give TJ a call if you are interested at 800-406-1109.
Todd
