OK guys I don't post much and I'm not a regular wrench turner but I have a basic understanding of a differential. My experience back in the day was with GM posi traction. When I bought my truck I opted for 2WD and a posi trac rear end or so I thought. I found out rather rudely that what I have IS NOT a posi. I crossed a ditch slowly so as not to shake up the wife to badly and got stuck with one wheel on the ground and 1 in the air and it was the only one spinning the one on the ground would not turn. My window sticker says anti spin. So my question is what is the most cost effective to get something akin to the GM posi trac unit? is the Aussie lunchbox locker a good way? I don't race my truck. It is my DD and it pulls our 5th wheel and I am retired, so just looking to not get stuck so easy with my 2wd CTD.

This is an awesome resource and I have learned a lot by just listening and trolling, am usually on daily reading what is being said.

Thanks in advance for any advice/insight.

 

Try lightly applying the brakes in the same situation as you did earlier.

If that helps than you do have an anti-spin, it is either wore out or not working properly.

 

you can get a Detroit air locker that way if you needed it to lock all you do is turn it on and when not needed turn it off that is if they make one for your diff

 

As Biltit said, apply brakes lightly as you apply throttle.

It's not a locker, it's limited-slip.

In a limited-slip set up the differential will only provide as much torque as allowed by the easier spun tire.

In other words if you have one tire spinning freely you are getting the equal amount of torque to the free spinning and the tire with traction.