Amount/kind of lube in rear differential?

[ronmarabito2002]

Filling hole depends on what your pinion or drive-line angle happens
to be according to the manual. If the angle is less than 7 degrees,
use the bottom of the fill hole on the drive shaft end of the
differential. This plug is on the side. If the pinion or drive-
line angle is more than 7 degrees, then use the bottom edge of the
fill plug on the side opposite the drive shaft. There are some
differentials with only one hole in the bowl opposite the drive
shaft and obviously this is what you use.

R.E. (Ron) Marabito, Dallas, TX 92WB40



--- In WanderlodgeForum@yahoogroups.com, "Jeff August"
wrote:
>
> Henry, on ours there is also a plug on the front side of the
pumkin,
> I'm not sure why? We used the top hole to fill and the one just
> higher than the axle as the full mark, not sure it was right but
when
> I asked last summer but I didn't get a clear answer. We used
> sinthetic, about 5 gallons. Hopefully someone else can give a
clearer
> answer,but this is what we did and had no problems so far.
> Jeff August
> 1980FC35RB
> Plymouth Wi.
> --- In WanderlodgeForum@yahoogroups.com, "Henry Claeys"

> wrote:
> >
> >
> > (1) I removed the top plug, from the rear differential, and had
to
> insert nearly my entire index finger before locating any lube. Am
I
> correct in assuming that the lube is low? (2) What type lube
should
> I use to refill? (3) There was a second plug, located lower,
which
> I assume is the drain plug. Should I drain the lube before adding
> more? Thanks. Henry@H... 1979 FC 35, McAllen, Tx.
> >
>