Moparts Tech Archive

Rear Axle

Sure Grip - cone type

In order to "rebuild" it you have to take it apart (which it sounds like it already is), then machine .030 off the face of each cone (the face that meets the case). When you put it back together, just put some .030 shims between the cones and the spider gears. Pretty cheap to do plus it saves you from buying a new sure-grip unit.

you machine the bottom of the cone, so instead of the cone bottoming out in the case, it will ride on the sides again alowing it to have some level of lock up again,

Sure Grip - clutch type

If it's a clutch type sure grip (741/2 casting), there will be "pins" in the hole where the axles go in. I've seen sure grips at swap meets that are missing the pins. They might give you a little hassle finding some but they are avail.

Tech Index