Chevy truck limited slip rear end

[catman71]

i got a new Chev 1/2 ton and it is the first truck I have ever has with the limited slip rear end. It cluncks very loudly when i spin on ice, the dealer service dept said this was normal. does anyone else's do this????

[SCUMFROG]

Does it have automatic engaging 4x4?

[catman71]

it does but i don't have it turned on.

[Barehooks]

General Motors uses a locking differential option code G80 manufactured by Eaton, it is not a limited slip differential. It will engage when it feels a 1/8 to 1/4 difference in the revolution of the rear wheels and you will hear a noticeable snap or clunk, it is a complete lock of the two rear wheels not a slip situation like a limited slip type setup. It releases between 18-25 mph it is a GM exclusive.

[rundrave]

Is it a locker or limited slip? I would guess locker if its a 4x4.

I have a locker on my tacoma, and it makes the same noise while engaging, its normal for the tacoma, not sure for other makes, but its says in the manual to only engage locker while wheels are moving less then 5mph, I prefer to be stopped. Most manufacturers will say not to go fast with them etc, just to cover themselves warranty etc..., but most lockers are pretty tough.

I will also note operating a locker in the snow can be VERY unpredictable. You can get the hang of it and sometimes it can be useful, especially at really slow speeds, but in most cases it will wind up with your tail lights trying to pass you up.

The next time you have a chance, find a big open area covered with snow where you can play safely for a while. Practice driving both locked and unlocked and watch what happens when you give it too much gas when it's locked. Unlocked, you might spin a tire, but the back end won't come around on you. Locked, the truck might as well be sitting on a slicks.

I prefer using the locker in only tricky mud and sand situations, not a big fan of it in snow or ice.

Lockers do have a place in the snow, especially once you are aware of the handling quirks, but if you lock up and drive on an icy road, fasten your seatbelt lol

congrats on the new truck!

[Hookmaster]

It's a locking differential and on my 04 crew cab it clunks also.