Hot bodies 1/8 diffs

[cmac]

Ok, I just got the time to swap out the steering linkage for the UE (gen 4) servo saver,and took the truck out for a spin. I still have the severe pull to the right. I now don't think it's the saver that is the problem. I am now thinking it's the 300k diff oil and locked slipper. At first I tried to run the truck with two servos, but I am now going to give in and just go with one. I know I'm stubborn, but when all the senior members in here keep saying just use one.........( I can here you guys saying I told you so). I just think all the torque is forcing the truck to the right under full acceleration. I'm really glad that I got the UE servo saver it just really looks great and you can tell what craftsmanship when into the design. So, guys what diff oil should I try to use? Remember I still want to be able to pop the front wheels up off the ground at will.
Thanks,
Mike.