Amount/kind of lube in rear differential?

[Jeff Miller]

Ron is right, on your diff. (Rockwell R series?) the level plug is on
the side of the casting, driveshaft end.

- Jeff Miller
in Holland, MI


--- In WanderlodgeForum@yahoogroups.com, "ronmarabito2002"
wrote:
>
> 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.
> > >
> >
>