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#19554 03/09/2005 8:32 AM | Joined: Mar 2005 Posts: 13 New Guy | | New Guy Joined: Mar 2005 Posts: 13 | Im repowering my 51 3/4 ton chevy pickup with a 350/auto trans, id like to use the original radiator but it has no trans cooling ability, can I cool the trans with a external cooler only? and how about the fact that the trans fluid won"t be heated by way of the coolant on those cold new hampshire mornings....afternoons....evenings brrrrr! | | |
#19555 03/09/2005 11:14 AM | Joined: Dec 2003 Posts: 1,554 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 1,554 | I used an external cooler on my 55,350 smallblock and 700R4 tranny,works just fine. | | |
#19556 03/09/2005 11:17 AM | Joined: Dec 2003 Posts: 1,554 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 1,554 | Also,you might want to put a shroud on that stock radiator to help keep that 350 temp.down.Got mine from Chevy Duty. | | |
#19557 03/09/2005 1:16 PM | Joined: Dec 2000 Posts: 506 Shop Shark | | Shop Shark Joined: Dec 2000 Posts: 506 | Tranny guy once told me that tranny fluid was not effected by cold only hot conditions % use Synthetic Tranny fluid if its a fresh rebuild.
"Drugs are money, money is power, power is security." - Kent Heiner
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#19558 03/10/2005 1:09 AM | Joined: Feb 2004 Posts: 29,760 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,760 | Keeping that 350 cool with the original radiator is going to be a challenge. You'll need to get it recored with a unit that will stand at least 15 pounds of pressure. Ditto on the heater core. The original core won't stand that kind of strain!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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#19559 03/10/2005 3:52 AM | Joined: Apr 2003 Posts: 66 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2003 Posts: 66 | According to TCI's website you don't need to use a radiator with the tranny lines going through it,UNLESS you live where it is below 0 degrees. See below: The following is from their site: Frequently Asked Questions Should I use an external transmission cooler in conjunction with the oil cooler supplied in the radiator? Answer: Unless operating in an environment where the outside temperature is below 0°F, you should cap off the radiator cooler line openings and run your cooler lines directly to a new cooler mounted in front of the radiator. This allows the transmission to have its own cooling system and doesn't allow the engine water temperature to heat the fluid. Click here for TCI FREQUENTLY ASKED QUESTIONS
Joe - (Buckeye Bowtie)
"Remember it takes about 2850 bolts to built a Chevy Truck and only 1 NUT to scatter them all over the highway"
1950 3100
1971 C-10
1939 Buick Century
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#19560 03/12/2005 6:45 PM | Joined: Mar 2005 Posts: 13 New Guy | | New Guy Joined: Mar 2005 Posts: 13 | Hey Buckeye Bowtie thanks a bunch for turning me on to the TCI web site! I"ve been searching for an answer conserning oil cooler applications specificly when the exsisting rad has no trans cooling ability and the answer was right there!!! I plan on towing a 20 ft boat behind my 51 chevy pickup on occasion. I"m still going to install a trans fluid temp sensor so I can see what going on down there. | | |
#19561 03/14/2005 5:11 PM | Joined: Aug 2004 Posts: 1,067 Shop Shark | | Shop Shark Joined: Aug 2004 Posts: 1,067 | Well, here's my 2 cents. Since I don't think you'll be towing a boat in below zero weather, I think you'd be just fine with an external cooler. I have been told by tranny guys that you can't put a big enough cooler on automatic trannies, and that in hot weather, the cooler you keep the tranny, the healthier it'll be. Especially if you're towing.
I would attach the biggest cooler you can buy right to the front of your radiator, and then either run soft lines or bend up hard lines around the radiator to the cooler. Stock coolers inside radiators are not good enough for towing.
52 GMC 3/4 ton pickup
68 Big Block Vette
68 455 Firebird
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