What kind of differential is this?

[Rhys Chalmers]

Just wondering if this is a LSD. Axle is a dana 44 with 3.07 gearing. Both wheels spin the same direction when turned! Thanks

 

 

[speeding_infraction]

Just an open diff. If you apply enough pressure to one of the wheels only one of them will turn.

[jdog]

It is not

[Rhys Chalmers]

@TurboedMJ

@jdog

Thank you

[Eagle_SX4]

Pretty sure it is a limited slip the open dif housings are round on the end. Here is a screen shot from a different forum talking about limited slips in a tj.

[AZJeff]

You can see the clutch packs (partially) in an LSD housing.  Those are not present in the photos, so that is a traditional "open" differential.

[gogmorgo]

Not necessarily. Some diffs put the clutch packs between the spider gears and carrier, often only on one side of the carrier. It’s maybe not the most effective solution to traction but it’s cheap. Same basic principal most selectable lockers use, just lock one side gear to the carrier.
If the OP has both rear wheels off the ground and the driveshaft free spinning, and both rear wheels turn in the same direction, that’s a strong indication it’s a limited slip. As is the “square” cylindrical end to the carrier, like was pointed out above. 

[AZJeff]

5 hours ago, gogmorgo said:

Not necessarily. Some diffs put the clutch packs between the spider gears and carrier, often only on one side of the carrier. It’s maybe not the most effective solution to traction but it’s cheap. Same basic principal most selectable lockers use, just lock one side gear to the carrier.
If the OP has both rear wheels off the ground and the driveshaft free spinning, and both rear wheels turn in the same direction, that’s a strong indication it’s a limited slip. As is the “square” cylindrical end to the carrier, like was pointed out above. 

That must be some aftermarket design you describe, as I have never seen an OEM diff. with that configuration.

[gogmorgo]

4 hours ago, AZJeff said:

That must be some aftermarket design you describe, as I have never seen an OEM diff. with that configuration.

Not really sure what to tell you there... it's literally how Jeep's Trac-lok limited slip works. Clutch packs between the side gears and carrier. Nothing unusual-looking compared to an open diff until you pull the side gears.

Start watching from the ten-minute mark if it doesn't cue it up for you.

[Eagle_SX4]

You can see the channels for the clutch pack "ears" in the second picture from the op. Pretty sure it is a limited slip.

[AZJeff]

I guess I learned something new.  I always assumed the normal LSD looked something like the attached photo inside.  I guess I was wrong, and there is more than one way to make an LSD, and some of them don't show the clutch packs so obviously.

[jpnjake]

Here’s what my xj 44 with factory lsd looks like 

you can see the clutches hiding just behind the spiders 

[AZJeff]

1 hour ago, jpnjake said:

Here’s what my xj 44 with factory lsd looks like 

you can see the clutches hiding just behind the spiders 

That's what I am used to seeing.  I guess just because a diff. has LSD does NOT mean it will look like all other diffs with LSD.  Everybody who makes an LSD carrier does them a little differently.

[pizzaman09]

Lucky find.  

I have a D44 with LSD as well, it works wonderfully, can easily spin both rear tires or cause nasty axle hop depending on load and tires I have on it.