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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | Joined: Jul 2014 Posts: 17 'Bolter | | 'Bolter Joined: Jul 2014 Posts: 17 | Does anyone know how good the aluminum transmission coolers work? I am referring to the 18 inch x4 3/4 x 2 1/8. long. 2 tube with aluminum fins. Richard [email protected] | | | | | Joined: Feb 2000 Posts: 5,202 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,202 | I am using a aftermarket cooler on T350 trans, its about 12" x 12" x 3/4" thick. It sets under the truck, half under bed, half under cab mounted to the frame rail. I figured air flow was best there. I use no fan or air ducts, the fluid is still as red as the day I put it in back in 2000 and after 10,000 miles.
Joe | | | | | Joined: Jul 2014 Posts: 17 'Bolter | | 'Bolter Joined: Jul 2014 Posts: 17 | Thanks Joe, I have a T350 trans with a 327 engine. I will check out Napa and see what they have. I checked the temp of the trans the other day and it was just above 200 degrees | | | | | Joined: Feb 2004 Posts: 29,771 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,771 | It depends on the load on the engine and the outside temperature. Heat is a transmission's worst enemy, so if you're towing trailers or moving a heavy vehicle like a motorhome or a 1-ton truck around, definitely use an auxiliary cooler. In very cold weather, the radiator-mounted "cooler" becomes a heater, warming up the fluid to at least coolant temperature and keeping condensation evaporated out. Some people add some T fittings and ball valves to isolate the cooler during below-freezing weather.
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!
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Liquid transfers heat many times faster then air. To use the aux. cooler in the return line is fine but by itself it would not be too good.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Feb 2004 Posts: 29,771 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,771 | I have used a complete air conditioner condenser as a trans cooler on a race car, without using the heat exchanger in the radiator. The cooler was mounted to the roll cage inside the car, rather than in front of the radiator like usual. It worked OK for several seasons with no obvious trans problems.
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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