What sure grip is this?

[Sedanman]

I got this from a buddy but he didn't know much about it other than being 4:10 gears for a 489 case and it doesn't look liker any factory unit but is std mopar spline.

 

[440DART1970]

Detroit locker?

Redirect Notice

 

[440DART1970]

Here. Even better.. supposably undestructable ***-kicking rear!

Eaton Detroit Locker Traction Control Differential, Locking Differential

 

[DoctorDiff]

That is an Auburn cone sure-grip.

 

[RustyRatRod]

It also appears to be an 8.250.

 

[DoctorDiff]

It is an 8.75" differential (12 ring gear bolts).

 

[RustyRatRod]

It is an 8.75" differential (12 ring gear bolts).

Why is the case different? Where are the two reliefs?

 

[Sedanman]

I also slid a factory axle in it.

 

[Sedanman]

Yep,it's an Auburn. Thanks Cass

 

[DoctorDiff]

BTW, Auburn cone sure-grips are not the same as the Borg Warner cone sure-grips installed in OEM '69-'74 8.75" rearends.

 

[Sedanman]

I need to see if I can get parts for it. The cross shaft is damaged and the insert may need replacing if this isn't what it's supposed to look like. There is a drift pin missing on one side where the axle contacts it. The one side twists off to take the sure grip apart but there is a pin in the keyway and I can't figure out how the pin comes out.

 

[Sedanman]

They do sell most parts for it so I can buy a new pin assy