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#1
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What's the preferred transmission fluid for a drag race application? I've been using Type F fluid for years in my TH400. I just got my transmission back from the shop. They only recommended to run full synthetic fluid but didn't say Dextron or F . I heard Type F was a better fluid many years ago I have even heard of guys running John Deere hydraulic fluid but what's the consensus?
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#2
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I run ATI super F. I know guys who run the JD with no issues.
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1969 LeMans..Liberty Blue 2001 WS6..Sunset Orange 1973 Pro Street Firebird..Lucerne Blue |
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#3
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just had my glide freshend after 8 seasons running Redline atf, needed nothing not even a new filter!!
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#4
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In my Rossler 210XHD, I've used John-Deere-Hy-Gard-Transmission-and-Hydraulic-Oil-TY6354 and currently using TCI-950650 Max Shift Synthetic Transmission Fluid after having the converter tightened up.
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![]() 2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
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#5
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ATI Type F.
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#6
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I've heard the John Deere fluid tightens up the converter a little. Did you find this too?
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#7
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Coan Transmission and I recommend AMSOIL Multi-Vehicle Spec ATF. Amazing stuff. Read all about it https://amsoilcontent.com/ams/lit/da...tins/g3110.pdf
Get yours at www.InjunOil.com
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Randy Repp 1964 GTO "GoatZilla" 1964 GTO "Injunuity" A/FX Nostalgia Super Stock 220" Rear Engine Pontiac Powered Dragster https://www.facebook.com/PontiacSpeedShop/ https://www.facebook.com/GoatZillaRacing/ https://www.facebook.com/groups/RebuildExcitement/ https://www.facebook.com/Call1844RacersRV/ https://www.facebook.com/groups/INJUNWARS/ |
#8
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This has been my understanding also. Run Type F. I just built my TH400 last summer and ran it with Type F. Pulled it apart this winter and it looked like new. I would love to try a new technology fluid but I'm wary of results. It's like don't fix something that's working. I realize that synthetic oils will handle the heat better, but clutches work on friction and they have to grab. I don't have enough experience to experiment I guess. Maybe there's a reason ATI sells Type F fluid. http://www.atiracing.com/products/tr...rts/superf.htm
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68 Firebird. IA2 block, 505 cu in, E-head, Solid roller 3650 weight. Reid TH400 4:11 gear. 29" slick. Best so far 10.12@133 mph. 1.43 60 ft. 76 Trans am, TKX .81 o/d, 3.73 Moser rearend, 468 with KRE D-ports, Doug headers, 3" Exh. Last edited by chuckies76ta; 04-10-2022 at 09:51 AM. |
#9
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The Caterpillar TO-4 spec hydraulic oil works well too. Probably similar to the Hyguard but I've never used that.
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'65 Tempest 467 3650# 11.30@120.31 |
#10
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Ran ATI type F for years.
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65 Lemans Street Car - 521, T400, 3.70 9". 10.13 @ 135. 3770 lbs. Drag Week ‘14, ‘15, ‘17 63 Lemans Race Car- 8.81 @ 151, 5.60 @ 123(SOLD) 67 Bonneville ragtop 74 Firebird - 455, e heads, TK0600 in process |
#11
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When an old fluid like Type F works well on all parameters, then any/all new fluids can at best provide a marginal benefit, if any benefit can be measured.
I cannot imagine the price for Redline ATF. Since the Price of Type F is high/Quart now, any lower-cost fluid ought be investigated. |
#12
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I drained and changed filter and added B&H Trickshift to my 1970 TH400 in the 70 Grand Prix....seems to be working well
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#13
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B&M Trickshift is type F with 10% synthetic type F. Been making my own for years.
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#14
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JD Hygard here.
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Jack Ferris RestoRacing LLC www.restoracing.com Sandy, UT --------------------------------------------------- |
#15
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Tough to tell, not enough consistent data at the time I tried it.
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![]() 2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
#16
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O'Reilly's basic dex/merc. 500+ hits on my turbo 400 and still going strong.
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