confused. differentials
 

I was hoping someone could help me with this.

If I take off from a stop light, real quick like it'll let one tire loose. If I'm stuck in the mud/snow and romp on it, it'll spin both tires, hell it'll spin all 4 and look pretty sweet.

This is all on a 1979 K10, I don't understand why it will spin both tires on say ice but it'll do the one-wheel-peel on the dry stuff.

Can someone explain this to me?

Re: confused. differentials
 

I'm assuming when in the mud and snow your stuck by the way of high centering. So no tires are touching the ground. And on the dry stuff one tire is planted on the ground, the other is spinning unable to get traction.

Re: confused. differentials
 

Open diffs will occasionally spin in the loose stuff if the truck is straight and everything is perfect. If you have a posi traction rear end it is possible that the clutches are worn out and not grabbing well on the dry stuff. Just my two cents.


:gmc2:

Re: confused. differentials
 

Yup, open diff or worn limitedslip/posi
Take the rear cover off and see what is in there, If you need help identifying it snap a pic and post it up.
:mm:

Re: confused. differentials
 

Will do, thanks guys.

Re: confused. differentials
 

http://i141.photobucket.com/albums/r...downsize15.jpg


Open?

Re: confused. differentials
 

That's Open,single spinner, one wheel peel.

Re: confused. differentials
 

And looks almost recently rebuilt?

Re: confused. differentials
 

You may be right,the black haze that generally builds up in the spiders is not there.Do you know any history on it ?

Re: confused. differentials
 

I know no history at all on the rear-diff.

New motor a few years before I bought it and the transfercase was rebuilt and it was painted. He didn't mention anything about it. There was a huge shear or scratch looking thing inside the differential that looked like it shoudln't have been there, almost like something broke and flew off?