Re: trany fluid
[Re: coronetville]
#2550263
09/15/18 11:58 AM
09/15/18 11:58 AM
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Joined: Aug 2003
Posts: 43,315 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,315
Bend,OR USA
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Type F still works well That is what I use in all my Mopar tranny except the later CTD H.D. O.D. truck tranny which get the stock type ATF +4 I run type F in my Bracket bomber with the after market powerglide per A-1 instructions also
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: trany fluid
[Re: Cab_Burge]
#2550289
09/15/18 01:13 PM
09/15/18 01:13 PM
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Joined: Feb 2005
Posts: 20,203 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,203
PA.
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I ran type F for years then Walmart Dextron 3. It worked great but when I was fighting a powerglide issue last year I switched back to type F only because that dog gone Dextron 3 stunk right out of the bottle new. I never smelled new transmission fluid that smells burnt new. Lol đ
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: trany fluid
[Re: moparx]
#2550302
09/15/18 01:48 PM
09/15/18 01:48 PM
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Joined: Mar 2011
Posts: 3,105 Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,105
Michigan
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as someone who has used dex3 in FWD transaxles for over 20+ years with absolutely NO problems, when +4 is supposedly the ONLY thing to use, what happens to 46,7, & 8RH/RE overdrives when type F is used ? [or dex3 for that matter] What FWD transmissions did you use Dexron in? What model years? As for using F in a 42/44/46/47/48, that was never tested to my knowledge at Chrysler. I would expect the same firmness in all gears. But the issue on the overdrive RWD transmissions is the overdrive geartrain gets fed fluid âleftoverâ from the converter return side. Thatâs a good indicator when fluid issues exist in an overdrive, the trans geartrain is good and the overdrive is toast. As most everyone knows heat kills transfluid and it kills Dexron fast. The materials lab at Chrysler ran tests and found that in an overdrive trans the Dexron is junk at 30k miles. One of the reason for developing +4. If Type F has the same basic base stock and additive package itâs junk at 30k too.
Last edited by Transman; 09/15/18 01:50 PM.
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Re: trany fluid
[Re: moparx]
#2550353
09/15/18 05:03 PM
09/15/18 05:03 PM
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Joined: Jan 2003
Posts: 26,005 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 26,005
Rio Linda, CA
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what happens to 46,7, & 8RH/RE overdrives when type F is used ? [or dex3 for that matter] Type F lacks the lubricating capability that most of the other fluids have and good lubrication is essential for the constantly-running OD gears. Also, the later fluids mitigate the converter lockup shudder that was common with the earlier fluids. The first Mopar fluid formulated specifically to combat lockup shudder was the 7176 and that morphed into ATF+3 and eventually into ATF+4.
The INTERNET, the MISinformation superhighway
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Re: trany fluid
[Re: coronetville]
#2550658
09/16/18 04:17 PM
09/16/18 04:17 PM
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Joined: Oct 2004
Posts: 8,165 Left Coast
BobR
master
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master
Joined: Oct 2004
Posts: 8,165
Left Coast
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#68 or 100 synthetic hydraulic fluid.
Last edited by BobR; 09/16/18 04:17 PM.
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Re: trany fluid
[Re: coronetville]
#2550703
09/16/18 06:33 PM
09/16/18 06:33 PM
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Joined: Dec 2005
Posts: 11,739 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,739
Fulton County, PA
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I thought we had decided that the John Deere HyGard was the hot ticket for 2 and 3 speed race transmissions.
If the results don't match the theory, change the theory.
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Re: trany fluid
[Re: CMcAllister]
#2550746
09/16/18 08:24 PM
09/16/18 08:24 PM
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Joined: Jan 2003
Posts: 26,005 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 26,005
Rio Linda, CA
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We? That would require total agreement...ain't gonna happen.
The INTERNET, the MISinformation superhighway
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Re: trany fluid
[Re: coronetville]
#2550904
09/17/18 03:43 AM
09/17/18 03:43 AM
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Joined: Nov 2003
Posts: 1,882 Pittsburgh,PA
RTSrunner
top fuel
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top fuel
Joined: Nov 2003
Posts: 1,882
Pittsburgh,PA
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What would be the result/benefit if any to running ATF+4 vs Dexron or type-F in a standard A-727/904 trans?
Last edited by RTSrunner; 09/17/18 03:45 AM.
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Re: trany fluid
[Re: A727Tflite]
#2550988
09/17/18 11:58 AM
09/17/18 11:58 AM
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Joined: Sep 2003
Posts: 19,641 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,641
north of coder
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as someone who has used dex3 in FWD transaxles for over 20+ years with absolutely NO problems, when +4 is supposedly the ONLY thing to use, what happens to 46,7, & 8RH/RE overdrives when type F is used ? [or dex3 for that matter] What FWD transmissions did you use Dexron in? What model years? 604/42LE/42RLE 4spd OD transmissions. 315k on a 95 with chrysler reman transaxle at 111k, 195k on 2000 with original transaxle, 146k on 2002 with original transaxle, and 162k in a '99 with original transaxle [current daily driver]. all of these in caravans, with the '95,'00, and '02 retired because the bodies fell off the floor pan. also, my wife's 94 concorde with 142k on the clock. all of these transaxles had trans-go kits installed, for what that's worth. fluid and filter changed around every 10-15k. at first, it was just my ignorance of fluid types, but after no failures, i just kept it up. i then read a service bulletin that said to use dex3 if temps were under 40* constantly. so, i dunno, maybe i'm the luckiest guy in town ? remember, this is just MY experience with the front drive OD transaxles. i was wondering, therefore, about type F in the A518. i did not know how the OD was lubed, but since it had clutches, i thought F would also help them lock up better. i'm missing something here, but i can't see it [old man's dysfunctional brain].
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Re: trany fluid
[Re: CMcAllister]
#2551048
09/17/18 01:56 PM
09/17/18 01:56 PM
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Joined: Jan 2003
Posts: 13,404 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,404
Marion, South Carolina [><]
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I thought we had decided that the John Deere HyGard was the hot ticket for 2 and 3 speed race transmissions. My trans and converter builder strongly suggests to never use the hydraulic/tractor fluid. Only exception is to use it for a test if you think you need a tighter converter. I've used Type F in my 727s for years w/ good results.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: trany fluid
[Re: PorkyPig]
#2551049
09/17/18 01:56 PM
09/17/18 01:56 PM
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Joined: Nov 2015
Posts: 884 Missouri
jwb123
super stock
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super stock
Joined: Nov 2015
Posts: 884
Missouri
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I have always used the fluid the manufacturer recommends. Putting Type F in newer computer controlled transmissions, could cause a lot of issues. Lock up converter lining damage, CVI indexes, etc. Most synthetic fluids have a higher boiling point, but have a different coefficient of friction than Type F. Lock up torque converters like a slicker fluid to function correctly. Back in the day type F was the way to go for a race trans. I use dextron in my race 727 with no issues. Below is a link to a brief description of how each fluid differs. http://automedicsafrica.com/all-about-automatic-transmission-fluids/
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Re: trany fluid
[Re: jwb123]
#2551099
09/17/18 03:37 PM
09/17/18 03:37 PM
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Joined: Jan 2003
Posts: 26,005 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 26,005
Rio Linda, CA
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Coefficient of friction is the main appeal of using Type F in performance 3-speed automatics.
The INTERNET, the MISinformation superhighway
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Re: trany fluid
[Re: John_Kunkel]
#2551187
09/17/18 06:23 PM
09/17/18 06:23 PM
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Joined: Dec 2005
Posts: 11,739 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,739
Fulton County, PA
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Coefficient of friction is the main appeal of using Type F in performance 3-speed automatics. True. This is what I've used in all race units, 727,904,PG. Valvoline/NAPA Type FA. I'm not running them behind 3000 HP so I've never had to go the hydraulic oil route to try to keep it alive. I have tried a synthetic street fluid and didn't like how the clutches looked. Evidence of slipping on apply. Once you go to aftermarket friction materials and converters, what the OEM used is irrelevant.
If the results don't match the theory, change the theory.
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Re: trany fluid
[Re: coronetville]
#2551213
09/17/18 07:17 PM
09/17/18 07:17 PM
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Joined: Jan 2003
Posts: 31,082 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,082
Oregon
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Paul at Turbo Action told me to use Dexron for street driving or bracket racing with his stuff, and Amsoil for class racing. Says that works the best for the components that he sells. Seems like okay advice to me since he is in the business and I'm not.
Last edited by AndyF; 09/17/18 07:18 PM.
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