Joe,
It appears that Penrite makes only one Steering Box Lubricant so you can't make the wrong choice.
This item is merely a NLGI grade 00 (double ought) grease. Castrol and many others make this item. It comes in a 14 1/2oz cartridge. It is self leveling, or semi-flowable, and will not leak out.
I looked at the old Chevron Dura-lith grease in '00' and noticed it had a much higher Timken load rating than the Penrite lube.
I would recommend to get what is easiest to get...all will work!
Stuart
