Amount/kind of lube in rear differential?

[Henry Claeys]

(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@...
1979 FC 35, McAllen, Tx.

[Mike Hohnstein]

The fill port is a little below the centerline of the pinion. It is located on
the curb side of the differential. Fill port is just that, it is located as to
not overfill the assembly, full is oil level at the bottom of the hole. It is
critical that the vent on the road side axle be open and functional.
Renewing the rear lube is not a bad thing, I use 80/140 wt, buy a 5 gallon
bucket if you want to change it all. Pretty cheap at farm supply stores.
Mike Hohnstein
Germantown, WI
83FC35
----- Original Message -----
From: Henry Claeys
To: WanderlodgeForum@yahoogroups.com
Sent: Sunday, December 18, 2005 9:26 PM
Subject: [WanderlodgeForum] Amount/kind of lube in rear differential?



(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@...
1979 FC 35, McAllen, Tx.



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[Non-text portions of this message have been removed]

[Jeff August]

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.
>

[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.
> >
>

[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.
> > >
> >
>