David,
Okay, here's how this all works. Read closely because what you have may not
be what I describe here. This depends on the options on your truck. The
heavy duty service group provides what I have on my vehicle.
First you have the radiator. If you do NOT have the heavy duty svc grp, you
will see oil lines from your transmission going into the radiator from the
side that is facing the engine. This is known as the oil to coolant type of
cooler. At the very least, your truck is equipped with this type of cooler.
If you do have the heavy duty svc grp, you will see your radiator and in
front of the radiator (toward the front of the truck) is the A/C condenser
coils. These almost cover the entire area in front of the radiator but it's
covered with fins so air can pass right through to the radiator. It's very
important not to bend these fins. In front of the condenser down at bumper
level, from the top of the bumper to the bottom of the air dam is the
transmission oil cooler. It is 5" high and stretches across the width of
the radiator. This is known as an oil to air cooler for hvy duty usage. If
this didn't come with your truck you can purchase aftermarket ones that will
serve this purpose. I'm not sure this is a necessity unless you plan on
towing. I don't believe using OD constitutes hvy duty usage, however, oil
cooling can't hurt, and if for nothing more than peace of mind, go for it.
By the way, the A/C condenser will appear in front of your radiator if your
vehicle is equipped with A/C regardless whether you have hvy duty svc grp or
not.
Ron
00 SLT QC 4X2 5.9 46RE 3.92 LSD
For modifications see my DML Profile
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net]On Behalf Of David Digney
Sent: Friday, December 01, 2000 5:58 AM
To: dakota-truck@buffnet.net
Subject: Re: DML: OD or no OD,That is the question!!
Ok...what im going to do,is buy the appropriate Hayden Transmission Oil
cooler,and have a shop install it for me.This way,i can use OD in the
city...
Ohh,and when i stopped by the Dealer a couple of months ago,and asked about
putting on a Tranny cooler,the "SFB" service advisor said,"see this thing in
front of the radiator?..this is your tranny cooler"
NOT..it is the A/C Condenser!..SFB said it also cools the Tranny Fluid.
JHC...These FA's dont know dick!
>From: Tom <Kaboinga@aol.com>
>Reply-To: dakota-truck@buffnet.net
>To: dakota-truck-moderator@twisted.twistedbits.net
>Subject: Re: DML: OD or no OD,That is the question!!
>Date: Fri, 01 Dec 2000 00:14:31 -0600
>
>Here's my take on this... A long time family friend I know... is a
>mechanical wizzard
>almost. Hes serviced fleets, school busses - owned several car repair
>businesses of his
>own... and owns a couple semi trailor loads of cars. (most dont run I
>believe LOL)
>Anyway - my point was he knows his stuff (as do the majority of you
>folks) We were
>talking about just this very subject this past summer - when I was
>telling him about my
>transmission troubles. I think it can be agreed in general, that what
>most contributes
>to a healthy transmissions death - is heat. And in city driving - stop
>and go -
>constant up and down shifting - I agree - that the use of an over drive
>gear will cause
>the transmission to do even more work. ths creating more heat and thus
>shortening the
>transmissions life. This guy was telling me - to leave over drive off in
>the city for
>just those reasons. However - the over drive gear is there as a way to
>save on fuel.
>What I would do - is I would leave the over drive on in highway driving
>(at any speeds -
>not just above 50) unless you are pulling a trailor or in step grades..
>etc... If you
>are going to use OD in city driving conditions - a transmission fluid
>cooler would be
>almost a necessity. Heck - in city driving - a trans fluid cooler is a
>good idea if you
>leave OD off or on.
>
>After I get my transmission replaced - I'm having a fluid cooler
>installed. Currently I
>an waiting to see how much longer the transmission will last before it
>croaks. Its not
>working too well LOL.
>
>David Digney wrote:
>
> > Ok..simple question.If i am driving in town(city),should i be driving my
>Dak
> > with the O/D off(light illuminated on dash)..
> >
> > I have the 3.9 V6/42RE set-up..
> >
>___________________________________________________________________________
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>--
>Tom
>http://members.aol.com/silvereightynine
>Pics and links pages updated on 11/18/00
>1989,V6,Auto,8 footer
David Digney
List Moderator: "DodgeDakotaQuadCab@egroups.com"
00'QC,SLT+,3.9,42RE,3.55,
K&N Home-Brew,Dynomax Super Turbo,Mobil 1 10w30
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