open diff?

[skippy]

i thought i had open differential,but swapping trucks in the driveway after work i let clutch out a little fast.left two distinct patches of rubber about 3 feet long.is this possible with open differential?

i can't make out the door sticker due to a bubble in the section with info,all i can get is b or 8 or 3 then 45,space or two then 4t.i still have the axle tag,got painted 2 years ago when i cleaned cover and applied liberal amount of gloss black spray paint.guess i could get the wire brush after the tag.

i believe it's a 3.45 gearing.

 

[Hahnsb2]

Yup, it's certainly possible to spin both tires with an open diff. From your description of the tag, it sounds open.

 

[skippy]

Yup, it's certainly possible to spin both tires with an open diff. From your description of the tag, it sounds open.

thanks

 

[MAKG]

Here's a real easy way to tell if you have a working limited slip.

Jack ONE rear wheel off the ground. Put the transmission or transfer case in neutral and release the parking brake.

Now grab the wheel that's in the air and turn it. Does it take a lot of effort or not? A working LS will take quite a bit (but it will generally be possible). An open diff will be substantially easier.

Alternatively, you can lift both wheels in the air and leave the transmission in gear (or park for automatics).

 

[skippy]

Here's a real easy way to tell if you have a working limited slip.

Jack ONE rear wheel off the ground. Put the transmission or transfer case in neutral and release the parking brake.

Now grab the wheel that's in the air and turn it. Does it take a lot of effort or not? A working LS will take quite a bit (but it will generally be possible). An open diff will be substantially easier.

Alternatively, you can lift both wheels in the air and leave the transmission in gear (or park for automatics).

thanks mike,are you talking about the breakaway test?30lbs to start rotation on a working l/s.

 

[MAKG]

Yup, that's a (simplified) breakaway test.

It can't distinguish a worn out LS from an open diff, but it sure can say if you have one that works.

 

[skippy]

Yup, that's a (simplified) breakaway test.

It can't distinguish a worn out LS from an open diff, but it sure can say if you have one that works.

thanks again.