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#1 |
Senior Member
Join Date: Nov 2005
Location: Victor, Montana
Posts: 386
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I'd like opinions on transmission coolers
I plan on buying a 700r4 for my 1971 GMC 1/2 ton 2wd. It will never tow or carry much weight. It will be powered by a Ram Jet 350. Question is this...An external transmission oil cooler is more efficient then the ones that are in the radiator, but with the 71 GMC grills, the external cooler sticks out like a sore thumb. What is yor experience with tranny coolers? I guess I just want a cleaner look from the front of the truck without compromising a new RV transmission. THANKS.
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04 4x4 GMC Ext. Cab lifted 71 2wd GMC / Ramjet 350 ready for sheet metal 49 Studebaker pickup |
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#2 |
Senior Member
Join Date: Jun 2003
Location: Westminster, CO
Posts: 3,071
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Re: I'd like opinions on transmission coolers
I have a 700R4 and mounted the 18" cylinder cooler in front. It will dissapear behind the 71" Chevy grill. You could also mount one of these on the frame rail beneath the cab...lots of air there too. Simple install!!!
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#3 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: I'd like opinions on transmission coolers
frame rail mounted dual-pass heat sink type of tranny cooler it's more than you'll ever need
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#4 |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: I'd like opinions on transmission coolers
Another option is the old style finned radiator style.They come with built in fans and can be mounted anywhere there's airflow avail.
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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#5 |
Registered User
Join Date: Sep 2004
Location: Pleasanton, TX
Posts: 1,723
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Re: I'd like opinions on transmission coolers
Do you guys completely bypass the radiator with an external unit or use both? Is the external better alone because it can get a breath of that country air?
Last edited by TugOwar; 06-26-2006 at 08:03 PM. |
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#6 | |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: I'd like opinions on transmission coolers
Quote:
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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#7 |
Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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Re: I'd like opinions on transmission coolers
Im in Texas I prefer to have them not hooked to the radiator cooler sometimes i have had to put them in because of the radiator not having the provision for one
I have installed TCI and PermaCool In the past I just Ordered A B&M Supercooler for a 73 Vette Ive Been Restoring. Ill let you know how it works out Reason for me getting it was because of the new radiator not having it. |
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#8 |
Senior Member
Join Date: Jun 2003
Location: Westminster, CO
Posts: 3,071
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Re: I'd like opinions on transmission coolers
Monster Motorsports, www.Eatmyshift.com reccomends by passing the "hot" radiator completely and going direct to the auxilary cooler.
Last edited by ChevyDude; 06-27-2006 at 02:14 AM. |
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#9 |
blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
Posts: 10,269
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Re: I'd like opinions on transmission coolers
I would stay away from the tube-fin type and get a stacked plate style like B&M. I have one I got from a step van parts supplier for about 1/2 the price of B&M.
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#10 |
Registered User
Join Date: Mar 2005
Location: tampa florida
Posts: 776
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Re: I'd like opinions on transmission coolers
I used a Monster Motorsports TH400 with a finned oil cooler mounted in front of the radiator. It does not pass through the radiator cause its always hot around here.
Last edited by gator2511; 06-27-2006 at 07:12 AM. |
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#11 | |
Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,254
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Re: I'd like opinions on transmission coolers
Quote:
Your transmission needs some heat. Up here (actually I'm typing this in Atlanta but home is Minnesota) you need to run the external cooler to the radiator then back to the transmission. I understand down here folks run them "backwards". First the radiator, then the external cooler. I know one guy up north who actually changes his summer to winter. The best thing to do is install a temperature gauge and monitor the situation. Last week pulling my boat up north my transmission got up to 195. Still an ok temp. My understanding is you want to run your trans between 100 and 200 F. Any higher OR LOWER isn't good for it.
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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#12 |
Registered User
![]() Join Date: Apr 2000
Location: Bradenton, FL
Posts: 1,036
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Re: I'd like opinions on transmission coolers
I run a B&M cooler, the largest one they make. I bypased the rad and just run through in the the cooler. I have a 402 with a 700R behind it. Put about 50000 miles with sometimes towing a car trailer and car. Never had a heat problem. I have lived in Indiana, Florida, Kansas, Ohio, Wisconsin, and now New York and have never had a problem with it to cold or to hot. Plus this is a used trans I put in there. Heres a pic of the front of the truck, not a GMC but it has the AC dryer and the cooler out front and cant see them.
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1970 CST/10 402,700R4,3:73 posi,AC,PS,PB,TLT,PW,Buckets with heaters |
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#13 |
chevy truck fan
Join Date: Mar 2005
Location: Gilbert, arizona 85298
Posts: 1,990
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Re: I'd like opinions on transmission coolers
hey guys,
i am putting in a b&m finned "streetrod" style cooler on my '72 with a 383 stroker motor. i am wondering where some of you guys have mounted your tranny coolers??? if possible could you guys also tell specifically how you mounted them?? thanks!!! rodstored-72 |
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#14 |
Senior Member
Join Date: Nov 2005
Location: Victor, Montana
Posts: 386
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Re: I'd like opinions on transmission coolers
This is what it previously looked like before my build started. Lower left hand corner is the cooler. I hope to have a smoother look. So far I've gotten some really good ideas from you guys.
__________________
04 4x4 GMC Ext. Cab lifted 71 2wd GMC / Ramjet 350 ready for sheet metal 49 Studebaker pickup |
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#15 |
Registered User
Join Date: May 2000
Location: Petrolia,Ontario,Canada but working in Port Huron,Mi.
Posts: 1,771
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Re: I'd like opinions on transmission coolers
Mine is a stacked plate cooler,28,000 GVM
![]() Here's a link to the install of it. http://public.fotki.com/blazbk/blaze...ission_cooler/
__________________
71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension. Petrolia,Ontario,Canada but working in Port Huron,MI. See ALL my Blazer pic's HERE |
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#16 | |
Senior Member
Join Date: Aug 2005
Location: tulsa OK
Posts: 3,070
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Re: I'd like opinions on transmission coolers
Quote:
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