View Full Version : Eaton posi from a truck in nova 8.5"


400bird
Jun 30th, 07, 12:23 AM
I finally found an 8.5" from a nova that Im going to get

The guy also has an eaton posi from a 99-03 truck he is selling

Will the 8.5" posi for a truck axle work in the nova rear?
I looked on summit and they have different applications, but I thought it might just be because one is 30 spline and one is 28 spline
And would it be worth it or should i get a eaton for the nova 8.5" rear?

Thanks
Jon

Eric Kammerer
Jun 30th, 07, 05:29 AM
The truck diff is a gov-lock style. Search "gov-lock" and you'll see that style really isn't for a performance application.


http://www.camaros.net/forums/showthread.php?t=15155&highlight=gov-lock

http://www.camaros.net/forums/showthread.php?t=108251&highlight=lock+posi

pdq67
Jun 30th, 07, 09:20 AM
Bttt, but will it fit??

pdq67

big gear head
Jun 30th, 07, 10:36 AM
It will fit if you use the right bearings and axles. The Governor Lock is not a regular posi. It works off of a governor, which is not very strong. When the governor breaks you have a standard differential again because it will no longer lock up.

400bird
Jun 30th, 07, 11:07 AM
even the eaton is a gov lock?
or was the stock posi a gov lock, and this could be an after market clutch-type posi?
should I ask the seller if it is a stock one or something?

and thanks bgh and everyone I was really hoping for your help
Jon

big gear head
Jun 30th, 07, 10:04 PM
The Governor Lock is made by Eaton, but it is not the same as the Eaton Posi. The 8.5 car posi was a Traction Lock, but Eaton makes a new posi for it that is stronger.

400bird
Jul 1st, 07, 11:51 AM
ok, I am pretty sure that its an aftermarket posi, when thats what he told me
I guess I will find out tomorrow when I pick it up

big gear head
Jul 1st, 07, 03:49 PM
If it's an Auburn then you should probably pass on it.

400bird
Jul 1st, 07, 09:01 PM
I havent seen it but he tells me its an eaton posi, clutch type not stock
I will take a pics once I have it

big gear head
Jul 1st, 07, 10:48 PM
Look at these and see what it is. http://community.webshots.com/album/55410292AnMJrE

whatsup
Jul 2nd, 07, 06:07 AM
I finally found an 8.5" from a nova that Im going to get

The guy also has an eaton posi from a 99-03 truck he is selling

Will the 8.5" posi for a truck axle work in the nova rear?
I looked on summit and they have different applications, but I thought it might just be because one is 30 spline and one is 28 spline
And would it be worth it or should i get a eaton for the nova 8.5" rear?

Thanks
Jon


First of all make sure its a 8.5" and not a 8.2"...you said Nova so I'm thinking 8.2". If it is truly a 8.5" then make sure the axle spline is the same. The rear is 28 spline the carrier might be a 30spline...if it is different then you would need axles to match...otherwise it will work. If its the gov-lock style it may work for you and it may not...depends on how you drive the car. Under normal driving they work ok...if you plan on hard launches it will grenade on you.