70RR...4sp.. Oil recommendations..?
#2477091
04/03/18 10:52 PM
04/03/18 10:52 PM
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Joined: Aug 2004
Posts: 2,087
New Mexico
JMCFAN
OP
top fuel
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OP
top fuel
Joined: Aug 2004
Posts: 2,087
New Mexico
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What oil are you all running in 4sp and rear end? In New Mexico.. no real severe weather...
68 Charger 383/ AT Green/Green VT
70 Roadrunner 383/4sp Purple/Black VT
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Re: 70RR...4sp.. Oil recommendations..?
[Re: JMCFAN]
#2477404
04/04/18 03:01 PM
04/04/18 03:01 PM
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Joined: Jul 2011
Posts: 953
Chicago
PurpleBeeper
super stock
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super stock
Joined: Jul 2011
Posts: 953
Chicago
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I run the thicker 85W-140 (?) my trans & rear end with "posi" additive in the rear end too. BUT....there's no good reason for this. I think the thinner 75W-90 (?) stuff is what is recommended....no posi additive in the transmission though.
I believe it was about 72 (?) that Mopar went to Dextron II in even the manual transmissions.....and that's really thin.
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: 70RR...4sp.. Oil recommendations..?
[Re: JMCFAN]
#2477781
04/05/18 10:48 AM
04/05/18 10:48 AM
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Joined: Jan 2003
Posts: 13,351
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,351
Marion, South Carolina [><]
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Pennzoil Syncromesh works good also in the trans.
I use the heavier 75w140 gear oil in the rear since it gets real hot here in the summer.
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: 70RR...4sp.. Oil recommendations..?
[Re: an8sec70cuda]
#2485573
04/20/18 12:55 PM
04/20/18 12:55 PM
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Joined: Jan 2003
Posts: 74,948
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,948
U.S.S.A.
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Pennzoil Syncromesh works good also in the trans.
I use the heavier 75w140 gear oil in the rear since it gets real hot here in the summer. This is what I use , it plays well with the brass in the trans .
running up my post count some more .
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Re: 70RR...4sp.. Oil recommendations..?
[Re: JMCFAN]
#2485686
04/20/18 05:04 PM
04/20/18 05:04 PM
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Joined: Jan 2003
Posts: 21,064
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,064
Niles , Ohio
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80 90 gear oil in mine since 1969.Still shifts great.Even when it was a daily driver and like 0 out its what I ran.Rocky
Chrysler Firepower
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Re: 70RR...4sp.. Oil recommendations..?
[Re: Diplomat440]
#2485690
04/20/18 05:16 PM
04/20/18 05:16 PM
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Joined: Dec 2004
Posts: 2,363
Wheatfield, NY
Cuda340
top fuel
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top fuel
Joined: Dec 2004
Posts: 2,363
Wheatfield, NY
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This above, GL-4 for the trans (very important) And GL-5 for the rear end.
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Re: 70RR...4sp.. Oil recommendations..?
[Re: JMCFAN]
#2485710
04/20/18 06:26 PM
04/20/18 06:26 PM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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What oil are you all running in 4sp and rear end? In New Mexico.. no real severe weather... 90 wt
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