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Old 02-28-2009, 10:53 AM
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Transmission Cooler Mounting...

Anyone have any experience mounting a transmission cooler in an 85 Oldsmobile Cutlass Supreme?

What was your technique? In front of radiator, behind radiator, etc? Did you install your cooler in series or bypass mode? How long did the hose need to be reach your desired position? Was the cooling sufficient? How much cooler did your machine run from before installation to after?

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Old 02-28-2009, 01:06 PM
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If you any experience mounting these devices your input is welcome. I know the process is kinda intuitive. I'm just looking for tips or suggestions.

Thanks for any replies...
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Old 02-28-2009, 08:15 PM
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Hello hope I can help. I run a tubo 350 on my chevy s10 with a high performance 450hp small block with an aluminum radiator. I have my send and return line still going from the transmission all the way to the front to where they would normally go into the radiator then I have my transmission cooler mounted on the front on my radiator. I am running a 3500 stall converter through town at times and never have any problems. Most people mount it in front of the radiator to get good airflow. Make sure you get a big enough one to keep it cool. Go to Autozone or Advance auto parts. The have decent deals.
Eric
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Old 02-28-2009, 11:21 PM
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Thanks for the reply, eric32...

How much did you pay for your unit at Autozone or wherever you got it?

The units I checked on were $150 and less depending on the accompanying equipment...

I'll be running a SBC 350 with a 3000 stall so if you could tell me what unit you're using I'd have a decent starting point...

Thanks again!
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Old 03-01-2009, 08:21 AM
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The stock radiator transmission cooler is also designed to warm the fluid when cold...
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Old 03-01-2009, 08:56 AM
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One of the best coolers is the Long Tru-Cool Low Pressure Drop (LPD) stacked plate trans cooler. You will probably have to go with mail order, but it shouldn't cost over $100 for one of the biggest coolers. They are rated for truck Gross Vehicle Weight (GVW), but you can just look at physical sizes and get the biggest one that fits. This is one company that sells them http://www.murphysautomotive.com/Mer..._Code=TRU-COOL

Also use the metal straps that come with the cooler, and do not mount it directly to the radiator. On one vehicle I was able to use the straps in a kind of star pattern and found four places to attach the cooler. On another vehicle I had to add a long L bracket (from Lowes) acoss the opening to give a place to attach the cooler straps.

The cooler should go in front of the radiator, with about 1-2" of clearance so it can't vibrate against the radiator fins, and so it allows full airflow between them. The cooler will come with a length of flexible hose rated for trans fluid, and you can buy more hose at a parts store. Most seem to use 11/32" trans cooler hose.

Most folks put the cooler inline with the radiator cooler (that's how the factory does it), but it will work standalone. In northern areas the inline setup is usually better because it keeps the fluid temp more stable. However, over-cooling trans fluid does not seem to hurt anything.

Bruce
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Old 03-01-2009, 12:17 PM
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Those look to better than the ones I previously priced...

Thanks for the suggestion, 75gmck25!
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Old 03-01-2009, 07:26 PM
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Hello mine cost less then $50 bucks. It is not the best one in the world but it has worked for me so far. They are universal ones. Just ask them on what they got and get a good enough size one for like heavy duty towing or a little bigger. My truck never tows stuff so that helps plus I run a clutch fan so it always pulls air good and I have a custom made fan shroud.
Eric
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Old 03-02-2009, 01:50 AM
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The thin stack plate type Bruce recommended are better than the tube & fin type that resemble a AC condenser. Here's a few TruCool LPD's also.>>
http://www.bulkpart.com/Merchant2/me...y_Code=coolers
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Old 03-02-2009, 07:27 PM
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I never saw them ones before. I will maybe try one this summer to replace the one I have. Thanks for info
Eric
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Old 03-03-2009, 07:22 PM
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B&M's coolers are stacked plates, I got one from Jeg's for $76. a few weeks ago. Has 1/2" NPT inlets for a good selection of fittings...

Russ
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