Is there a visible way o practical way to know yo have LSD??

[Mux213]

Hey Jondee,

I'm not sure you're right in what you say there. A clutch diff will lock when no wheels are off the ground, a clutch diff always locks atleast a little bit. If you open one of these diffs up you'll see that there is always a spring load on the clutch plates so they are always engaged atleast a little.

The bigger the speed difference between the wheels, the more it tries to lock, so when the wheels spin in different directions (what will happen with an open diff) the lock will increase dramatically.

Only when the clutch plates are warn there is no locking and there may only be locking once the diff warms up and everything expands a little.

But you are right in saying the method I described isn't the most relyable. If you have a good working LSD you will know this. If your LSD isn't good anymore, or if you do not have a clutch LSD, you'll have to open up the axle to find out what you have.

BTW, the only type of diff that will absolutely not lock up without load, is a torsen diff (or whatever its spelled) because these differentials work on torque. When both wheels loose grip (I believe even when one wheel looses grip) there is no lock anymore and the thing becomes an open diff. When both wheels have atleast a little bit of grip, these differentials really come into their own.