Is regular 80w90 fine or should you run yamalube in the front and rear diff.?

 

Any good gear oil will work, I would run a GL - 5 rated lube (for limited slip differentials), remember,you have a clutch pack limited slip in the front, so go to an auto parts store and get a bottle of limited slip additive, and put an ounce in the front, then fill the rest of the way with the GL 5 lube. The additive will prevent sticking and damage to the front diff clutch, and make it handle and steer better and last a lot longer. I have heard of a lot of guys complaining of noise and stiffness in the front axle after a lube change, the additive will prevent that.

 

i would use 80 90 fliud thats wut i used and i havent had any problems i would use wut the manufacture reccomends so that way u dont mess up ur 4