LSD additive

[z07]

When servicing your differenetials do you put in an LSD additive?

I know that putting in too much will keep the clutches from locking and putting in too little or none can cause them to be grabby or fail.

I don't want to do an afternoon of figure eights if someone already knows how much if any to add.

I'm also looking at Mobil 1 synthetic 75w-90 with LSD additive.

The vehicle in question is a 1995 K2500 Suburban.

What's the wisdom of the forum?

[gmctrucks]

I have heard that the best additive to get is from the dealership.

[leolkfrm]

I only use oem additive

[75K30]

For applications where additive is required, I also use OEM additive. I actually prefer GM additive, as the ford, and spicer additives kind of stink. No really, they smell awful and I prefer the Gm stuff.

Now as for my uses, I dont use any at all. Understand the concept of the additive itself. It is designed to condition the clutches for smooth operation. Well this is mumbo jumbo for, making the clutches slip.
Lets see, we add a limited slip to help direct output ot torque to both axle shafts, then we add some friction modifier to make them slip. Kind of makes little sense.
I can live with a little clutch chatter, and almost expect that little vibration when I accelerate, and cant bring myself to install any modifier in the differential.

When I am forced to use it, like if I build a diff for someone else, I use GM additive.

[bradrhale]

Originally Posted by 75K30

I actually prefer GM additive, as the ford, and spicer additives kind of stink. No really, they smell awful and I prefer the Gm stuff.

i didnt know this was a key selling point for additives. tell me something. does your tire shoes smell like burning rubber, feet, or the little christmas tree stink pretties that you hang from the rearview??

i use what the book tells me to.

[stumpuller454]

not any more, used to run the gm stuff from the dealer in the factory diff.

[75K30]

Originally Posted by bradrhale

i didnt know this was a key selling point for additives. tell me something. does your tire shoes smell like burning rubber, feet, or the little christmas tree stink pretties that you hang from the rearview??

i use what the book tells me to.

Cant get my mud shoes to turn fast enough to burn rubber, lol.
By the way, my feet dont stink.......yeah right!!!!!!