Find all your fluid capacites here - I'll be adding more as I get more manuals.
http://www.kelleyswip.com/fluids.html
As far as specs, go with NLGI GL-5, 80W-90 or 75W-90 (depending on which you find.) 75W-140 is really only needed for severe service - read: towing and hauling frequently.
Check to make sure whether or not you have a clutch-based limited slip (you can usually see the clutch packs behind the side gears, inside the carrier.) If you do, add two ounces of LSD Friction Modifier additive (I'll usually dump the additive in after the first quart goes in.) If you're not sure, add the FM anyhow - it won't harm anything if you don't have it.
Your D30 front, if still original, is all but guaranteed to
not have the LSD. Again, tho, adding it to the front axle won't harm anything, so you can go ahead and pre-add it to your entire stock of GL-5.
NB: If you have the AX-15 manual, you'll want to use NLGI GL-3 gear oil for it. GL-3 and GL-5 should still be commonly available - and, unlike engine oil (through API Service SL,) NLGI specifications are
not backwards compatible!
Performance synthetics have two potentially useful properties:
1) Most of them have LSD FM pre-added. If they specifically say they do, you don't need to purchase it separately.
READ THE LABEL!
2) An increasing number of NLGI GL-5 spec gear lubes are using EP additives that are safe for use with yellow metals. If you have an AX-15, check the MFR lit - if they've got "safe" additives, you can go ahead and use them in the AX-15 as well.
READ THE LABEL!
If you have the BA-10/5 manual or the AW4 automatic, ignore the previous information about yellow metals. The BA-10/5 uses aluminum synchroniser rings, and the AW4 uses Dexron II/IIE/III/VI Automatic Transmission Fluid.
addy, please!
