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 2Likes
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2
Post By Dimis
07-06-2016, 08:10 PM
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Club Cobra Member
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Join Date: Feb 2003
Location: Houston,
TX
Cobra Make, Engine: Kirkham/Southern 427 SO finally on the road
Posts: 508
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Not Ranked
which transmission fluid for a toploader
My old notes say 75-90, but what say ye? Synthetic or not? Street driven not tracked. thanx steve
__________________
steve meltzer
"I may be wrong, but I'm never in doubt"
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07-06-2016, 09:19 PM
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Senior Club Cobra Member
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Join Date: Jan 2003
Location: Roseville,
CA
Cobra Make, Engine: 427 Unique Roadster, FE by FE Specialties, 470hp, Top Loader, 3:31 Jag
Posts: 1,716
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Not Ranked
__________________
Phil
CA SPCN 2004-040 complete and legal
http://www.uniquecobra.com/
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07-07-2016, 12:21 AM
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CC Member
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Join Date: Apr 2008
Location: Melbourne,
Vic
Cobra Make, Engine: Some polish thing... With some old engine
Posts: 2,286
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Not Ranked
I hear Bernica, who is a big fan of the toploader uses this stuff. 
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07-07-2016, 04:44 AM
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CC Member
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Join Date: Aug 2013
Location: Canandaigua,
NY
Cobra Make, Engine: SPF MKII Riverside Racer FIA
Posts: 2,496
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Not Ranked
Do not mess with it, good old 80-90 gear oil is what it needs. |
07-07-2016, 07:53 AM
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CC Member
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Join Date: Apr 2009
Location: Little Rock area,
AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,519
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Not Ranked
GL-4 is normally recommended for older transmissions but most will agree that GL-5 works OK. There's an argument that GL-5 corrodes brass but a lot of people disagree it's an issue.
I would stay away from synthetic. Some say it will defeat the action of the syncros. I ran synthetic in a Muncie for about 15 years without issue, but recently changed it out to GL-4 which can be obtained at NAPA. Interestingly, the only thing I noticed different about synthetic was that the Muncie aluminum case took on an oily sheen appearance (but dry) like the case was permeated through and through with it.  |
07-07-2016, 02:44 PM
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CC Member
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Join Date: Feb 2006
Location: Gore. New Zealand.,
SI
Cobra Make, Engine: DIY Coupe, F/T ,MkIV.
Posts: 808
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Not Ranked
80 gear oil. NO EP ( extreme pressure ) derivatives.
__________________
Jac Mac
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07-07-2016, 05:43 PM
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Club Cobra Member
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Join Date: Feb 2003
Location: Houston,
TX
Cobra Make, Engine: Kirkham/Southern 427 SO finally on the road
Posts: 508
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Not Ranked
thanx. think i'll get a nice robust zinfandel for that cheese. s
__________________
steve meltzer
"I may be wrong, but I'm never in doubt"
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07-07-2016, 06:25 PM
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Senior CC Premier Member
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Join Date: Nov 2004
Location: SoCal,
CA
Cobra Make, Engine: CSX #4xxx with CSX 482; David Kee Toploader
Posts: 3,574
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Not Ranked
__________________
All that's stopping you now Son, is blind-raging fear.......
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07-07-2016, 06:30 PM
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Senior CC Premier Member
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Join Date: Nov 2004
Location: SoCal,
CA
Cobra Make, Engine: CSX #4xxx with CSX 482; David Kee Toploader
Posts: 3,574
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Not Ranked
I forgot to add that you should put a stick of butter in as well! JK! 
__________________
All that's stopping you now Son, is blind-raging fear.......
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07-07-2016, 07:16 PM
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Senior Club Cobra Member
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Join Date: Mar 2005
Location: Manchester,
NH
Cobra Make, Engine: AK1085 (302 Street), HTM111 (427 Comp), CSX2375R (289 Comp) and COB5999 (427 S/C)
Posts: 18,997
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Not Ranked
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