I was going to wait and scan the original documentation that came with my diff lock before finally putting you out of you misery about the oil. But this will have to do. This is a quote from the fitting instructions supplied by ARB on the Zook website:
"12. Refill axle housing with good quality differential oil, referring to vehicle manufacturer's specifications for the oil type and quantity. Although the AIR LOCKER does not require any special gear oil,
we recommend using a limited slip differential oil to maximize the life of all differential components."
Then this is one from the fitting instructions quoted on the Jeep website:
"ARB Air Locker Installation
for a model RD30 Air Locker to be installed in a Dana 30 axle
Nov 1, 2005
By:ORC STAFF
Jeep at Off-Road.com
ARB Air Locker Installation
17. Refill the axle housing with good quality differential oil, referring to the manufacturers' specifications for the oil type and quantity.
o Although the Air Locker does not require any special gear oil,
ARB recommends using a limited slip differential oil to maximize the life of all differential components."
Then this is a link to the oil recommended by ARB as regard to Viscosity. You will note that for any real off road work you should use 85/140
http://www.arbusa.com/alac/alsp/6-01.pdf
So if you are going to fake emails from ARB, at least do a decent job of it next time!!!
