Im trying to determine if i have a Posi-Diff on my RamVan

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Dave in Lake Villa - 25 May 2005 13:28 GMT

The window sticker says :' Semi floating Rear 9 1/4 inch Heavy Duty Rear
Axle'.
Its on a 1997 Ram Maxi Van 3500.

Does this require the posi lube additive from Dodge ?

Thanks.

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Tom Lawrence - 25 May 2005 13:50 GMT

> The window sticker says :' Semi floating Rear 9 1/4 inch Heavy Duty Rear
> Axle'.
> Its on a 1997 Ram Maxi Van 3500.
>
> Does this require the posi lube additive from Dodge ?

If it doesn't say, "Axle - Anti-spin differential" under the options section
of the window sticker, then no, you don't have a limited slip, and you don't
need the additive.

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TBone - 25 May 2005 18:21 GMT

> The window sticker says :' Semi floating Rear 9 1/4 inch Heavy Duty Rear
> Axle'.
[quoted text clipped - 3 lines]
>
> Thanks.

Semi-floating refers to the bearing configuration of the axles and IIRC all
9 1/4 rears are of a semi-floating design.

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Coasty - 25 May 2005 21:43 GMT

Check your rear diff there should be a tag on the bolts if so good bet it is
anti-slip.

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Coasty
Semper Paratus
(Always Ready)

| The window sticker says :' Semi floating Rear 9 1/4 inch Heavy Duty Rear
| Axle'.
[quoted text clipped - 3 lines]
|
| Thanks.

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Dave in Lake Villa - 26 May 2005 03:18 GMT

If it wont cause any harm, ill just go ahead and add some anyway just to
be safe since im not sure if it is a Posi.

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dave's a pervert - 26 May 2005 16:13 GMT

try using KY jelly, Dave..You said it works well on your neighbor's
sheep

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Henry - 27 May 2005 20:12 GMT

Darn, you are a sick one.

Henry

> try using KY jelly, Dave..You said it works well on your neighbor's
> sheep

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nospam.clare.nce@sny.der.on.ca - 28 May 2005 05:22 GMT

Posi fluid has been used (and recommended by several manufacturers) to
quiet noisy open diffs for several decades.

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Coasty - 27 May 2005 02:52 GMT

Nope it won't hurt.

Signature

Coasty
Semper Paratus
(Always Ready)

| If it wont cause any harm, ill just go ahead and add some anyway just to
| be safe since im not sure if it is a Posi.

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SnoMan - 27 May 2005 17:35 GMT

>The window sticker says :’ Semi floating Rear 9 1/4 inch Heavy
>Duty Rear
[quoted text clipped - 4 lines]
>
>Thanks.

Simple check, jack up both rear wheels and place tranny in neutral.
Spin a rear wheel and if other side spins in same direction it is a
posi rear end. If it spins in opposite direction it is a open diff.

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TBone - 27 May 2005 18:04 GMT

You can check it with just one wheel lifted as well. Lift one wheel and put
it in neutral (be sure to block a front wheel) and try to turn the lifted
wheel. If you can turn it, it is an open rear (or a dead limited slip) and
if not, it is a posi.

Signature

If at first you don't succeed, you're not cut out for skydiving

> >The window sticker says :' Semi floating Rear 9 1/4 inch Heavy
> >Duty Rear
[quoted text clipped - 8 lines]
> Spin a rear wheel and if other side spins in same direction it is a
> posi rear end. If it spins in opposite direction it is a open diff.

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SnoMan - 06 Jun 2005 18:35 GMT

>You can check it with just one wheel lifted as well. Lift one wheel
>and put
[quoted text clipped - 3 lines]
>slip) and
>if not, it is a posi.

2 wheel check is more positive and effective with mopar type LSD
units.

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