Limited Slip Differential Identification

DrJekyll · Jun 9, 2016

Just bought a early 2003 1500 Quad Cab 4x4 with the old 5.9. The equipment identification sheet in the glove box says "Anti-Spin Differe", so I assumed at purchase it is factory equipped with LSD.

I am currently going through and changing all the fluids. Looking at the service manual the rear axle requires a limited slip additive if equipped with the Trac-Lok differential, but does not require the additive if equipped with the Trac-Rite differential. Which LSD do I have?

I tried searching previous posts but was unable to find this information. Forgive me if this is already posted somewhere.

Thanks!

DrJekyll · Jun 13, 2016

Nobody knows the answer to this?

JPT · Jun 13, 2016

The additive will not hurt a non-LSD axle. Just buy gear oil already with the additive, and you will be good. A lot of gear oils already have the additive in them.

bulrid8 · Jun 13, 2016

Just use royal purple in it. Already has the additive in it.

Sent from my VS985 4G using Tapatalk

Ramunit · Jun 13, 2016

You have trac-loc. If it calls for the additive put it in.

JPT · Jun 14, 2016

Ramunit said:
You have trac-loc. If it calls for the additive put it in.

One can actually put in too much additive in a clutch driven LS, so to the OP, read the label of the gear oil and see if it already has the additive in it.

Too much additive, the clutches will slip (making it act almost open), too little, and they wont slip (prematurely wear out).

DrJekyll · Jun 14, 2016

Thank you everyone for the replies. Will be using the additive, but will pay attention that the correct amount is added.

Limited Slip Differential Identification

DrJekyll

Junior Member

DrJekyll

Junior Member

JPT

Senior Member

bulrid8

Senior Member

Ramunit

Senior Member

JPT

Senior Member

DrJekyll

Junior Member

Similar threads

Latest posts

Members online

Forum statistics

Share this page