gear oil

[jason6989]

Anyone know what viscosity I have to put in my rear diff transfer case and gear...we only have a royal purple dealer where I live and I've used royal purple max gear with synerlec sae75w-90 for my gear.. I don't know what the old owner put in my diff and transfer case.
Could anyone suggest what rear diff and t case oil I should use?

Eclipse 2g 99 Gsx


Thanks in advance

 

[fastfred]

I use redline heavyweight shockproof. If i didnt id use some sort of synthetic 75-140

 

[Nuzzi]

Im using Lucas 75-90 heavy duty non synthetic in the rear end and tc, drives mint and no noise. Really no need for the 75-140 lsd gear oil since the lsd in these cars are sealed viscous units, the oil viscocity
has no effect. As for the tranny im using royal purple, whichever you choose for the tranny make sure it is safe for yellow metals.

 

[2slowTalon]

I use Amsoil in everything

 

[oren hughbanks]

I use redline shockproof heavy never had any issues ! Great stuff I recommend it fo sho

 

[Slo2gn]

Red Line we use that in our Sprint Car rear ends its top notch stuff.