I would recommend using Mobil Vacuoline 1409, which is formulated similar to the original Vactra 2 with more tackifiers, it also is rated for gearboxes and is a higher performance oil than Vactra 2. Minimum size is 5 gallon pale, I picked up mine through a local oil distributor for about $85. I felt it worked better than Vactra #2 which I previously used.
Oil distributor, you can check for locations or it is offered online for $98 plus shipping.
http://www.andeavor.com/contact-us/
Oil distributor, you can check for locations or it is offered online for $98 plus shipping.
http://www.andeavor.com/contact-us/