Just thought I would post a GM part number for those interested

GM # 15968872

which is an Aux trans fluid cooler...comes with cooler, two brackets,
clamps, hoses, botls, clips... everything but the pipe cutter and
flare tool.

@ gm parts direct about $80 which is more than BM or TCI cooler. This
has all the parts to install, except for the mentioned tools.

Just wanted to list in case someone was looking.

On the "destructions" it says for C & K trucks and I think the part
number points back to the full size SUV of the 92 year era...

It looks to me like the same thing that comes on the z71 pickups and
other GM 4*4's

So anyway check out that GM number....do some research to make sure it
will fit your machine.

I'm just posting the info....don't know if this works any better or
worse than an aftermarket unit. I do like the way it mounts though.

I can scan the instructions if anyone wants?

Elbert
-----------
Elbert
ask (AT) me (DOT) com

I'm currently looking into putting a cooler on my 89 pickup for
towing... it'd be great if you could scan those instructions as i
haven't completely made up my mind yet on which one to get.

Thanks,
Ed

On 7 Mar 2006 05:01:32 -0800, "89GMC" <dziarcak (AT) gmail (DOT) com> wrote:



No need to go overboard in size as if it is too big, cold weather
performance will suffer. They are pretty generic in design and
installation with only size differing. Make sure you route it thru
radiator tank cooler first then aux cooler. On a GM cross flow
radiator, the top line from tank cooler is the one that you want to
route to aux cooler and then from cooler back to tranny. The top line
is the tranny return line.

Thanks snoman, just saved me having to pull em off and see which one
squirts

A trans cooler matched to your needs and environment is key. If you live in
a cold climate and stick a big cooler in front of your radiator you are
going to run into problems in the winter. Premature converter lock up, poor
fuel economy and anything else you can think of caused by thick lubricant. I
ended up with a transmission cooler from a Volvo semi, needed a cooler for
my pickup. Come November I was pulling it back out. Drive 2 hours down the
highway and still had a cold tranny and felt like I was pulling 2 tons
behind the truck. Now I have a smaller cooler mounted flat over where the
passenger side fuel tank would be on a dual tank truck. Thermostatically
controlled fan works like a dream.
"Elbert" <ask (AT) me (DOT) com> wrote

I'll run them through the scanner at work tomorrow .... get some PDFs
some decent pictures....not too many words. It may scan decent.
I'll post them to the group...but I'll warn you it may take me a
couple of trys... I've not posted attachments to the newsgroup very
often.

7 pages of lare pictures and few words. The actual cooler looks to me
just like the OEM one that comes on 2500 and 1500's with the towing
packages.

according to the instructions

you cut the top cooler hard line on the 700R4 and 4L60E
you cut the bottom cooler hard line on the 4l8oE and turbo 400

instructions also illustrate that the cooler is setup "in-line" with
the factory OEM radiator tank mounted trans cooler.

Elbert

On 7 Mar 2006 05:01:32 -0800, "89GMC" <dziarcak (AT) gmail (DOT) com> wrote:

Elbert
ask (AT) me (DOT) com

=======
=======
David Johnson wrote:
==========
DJ,
you're wrong.
As it pertains to the vehical in the OP.......
a "cold tranny" will delay lock-up.

NOT....cause premature lock-up.
And...the "thick lubricant" scenario isn't gonna do it either.

You stated yer tranny was having premature lock-up with the bigger
cooler. While leading us to believe it was because of overcooling.

Next you say you went to a smaller cooler, relocated under the vehical,
out of the main air stream.....and now it works like a dream.
Here, you've led us to believe it's because the tranny is getting
warmer..
faster. (which is likely true)


How then.....can you explain the fact that lock up will not come on
untill the engine reaches "operating" temperature. (HOT)
And.....on newer Goodwrench vehicals.....lockup will not come on
untill the tranny itself reaches "operating" temperature. (HOT)
But.....your above experience.....negates this fact.


sorry...

Fact, not fiction.




~:~
MarshMonster
~:~

I guess a typo on my part. Tconverter stall is what I meant. Actual lock up
is prevented by a temp sensor in your tran until it is warm.
"Marsh Monster" <MarshMonster2624 (AT) aol (DOT) com> wrote

On Tue, 07 Mar 2006 20:32:59 -0600, Elbert <ask (AT) me (DOT) com> wrote:

I've attached a scanned copy
of the instructions that came
with the GM trans cooler "kit".


-----------
Elbert
ask (AT) me (DOT) com