Detroit Locker Update
 

It's broken in now, and I have gotten on it a bit. Definately more aggressive than the limited slip. I have driven it on solid ice, both on pavement and off with little problem (except when I whough it was in 4 high going up a snow covered ice hill). I like having traction to both tires right away, instead of starting to spin one tire before the other gets traction.
If you have been driving posi pickups in bad conditions for some time, you won't have trouble controlling the Detroit Locker.
You do have to be more careful though, because there is a much more positive connection to the drive train now. I think it would be easier to break parts!
I would hate to go back to a limited slip at this point.

have you towed with it yet? how much did the entire rebuild cost you? people allways say lockers are bad on ice, but I figured if you know how to drive and know your truck your fine.

No, I haven't towed yet. I want to make sure it's totally broken in first. I don't anticipate a single problem though. It's probably at it's worst unloaded and light.
You are right, if you can drive, and know what your truck will do in any circumstance, it's really a non issue driving on the ice with a locker.

Well help a guy out... what is a locker? What is under my truck now? I have the factory D70.

Thanks, Tony

You either have a limited slip, which only allows so much difference in tire speed via clutches, or an open differential, which transferrs power to the slipping wheel only. A locker allows the outside wheel in a turn to spin faster, but the power always goes first to the wheel that is getting traction, then locks as soon as both wheels are turning at the same speed.

Is there a way to tell by looking what I have? Thanks for the explanation.

Yes. There are a couple of ways. The best way is to jack up the rear axle, support it, and spin one of the tires. If they both turn in the same direction, you have a limited slip. If they freely turn in opposite directions, you have an open diff. If they start spinning in opposite directions, then the other tire slow, stops, or eventually starts spinning the same direction, you have a limited slip with the clutches going out on it.
Mark

Okay thanks.

or look at your option sheet under the hood.right under the gear axle ratio it should say ''limited slip differential''..at least mine does