Anyone used one with good luck? How do they compare to an Eaton or Torsen?

 

they blow up.

 

I had never heard of them until I came across them all over ebay. Figured they were junk. I was just wondering about them since I had never heard anything good or bad.

 

Holy shizz, what kind of numbers were you pushing through it when it blew?

 

wasen't gov lock the stock units

 

Usually not in cars, though there may be exceptions. Usually they were a truck item.

 

Trucks, yes I have one in my 95 s10. Low mileage unit or it would be gone. I paid a lot of $$$ for it when I ordered the truck not knowing I was getting a gov-loc. I assumed being familiar with Third gens and with the s10 rearend identical I was getting an Auburn differential or something similiar. Not one of GM's better ideas.

 

All the later (95 or so) GM G80 (posi) units were gov lock. Since there are few rear drive car anymore, most were found in trucks.

 

will work "fine" for regular everday driving but forget about standing on it at the track especially with drag radials or slicks.

 

They are trash. They do not survive on pavement. Just go browse the S truck forums, look how many people grenade them with 6-cyls.

What they do, is act like a regular open diff, until the RPM difference between the axles exceeds approximately 150 RPM; at which point they lock up suddenly. In other words, you have NO POSI ACTION WHATSOEVER at launch; and no way to know when it's going to suddenly cut in. Then if the car gets any traction, it grenades when it locks. Altogether unsuitable for high-performance use.

The thing about the 95-up F cars having the Gov-Lock is WRONG. The posi units in F car 10-bolts from about 85 to 97 were Auburn; then from 98 up, they were Zexel Torsens. The ONLY F cars that got Gov-Locks were in the early 80s; and most of those have long since failed.

 

My bad. After a little more research it looks as only trucks had the gov locks. Sorry to offend you Sofa, with my hasty & ill conceived reply

 

Thanks!!! although, the slip-up didn't "offend" me, as such; I'd be more concerned about somebody that didn't already know, getting into some kind of confusion while trying to buy or sell parts or something like that. Or, worse yet (horror of horrors!!) making a fool of themselves and countless others in a Friday-night McDonalds-parking-lot monkey-spanking situation, as has been described here by others. Now that would be just plain wrong.