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CC Advertisers
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11-23-2011, 06:34 PM
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Senior Club Cobra Member
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Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
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Not Ranked
Quote:
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75w-90 what brand and type
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Valvoline conventional oil in 75/90, recommeded by most toploader builders, mine is in a road racer,so I change it once a year.......
David
__________________
DAVID GAGNARD
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11-23-2011, 07:56 PM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 931
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Not Ranked
Quote:
Originally Posted by DAVID GAGNARD
Valvoline conventional oil in 75/90, recommeded by most toploader builders, mine is in a road racer,so I change it once a year.......
David |
I believe this is GL-5 correct? I also have heard it has friction modifiers in it.
I actually think I have 2 qts of Valvoline on the shelf but they are 80w-90 conventional |
11-24-2011, 04:04 AM
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CC Member
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Join Date: Mar 2001
Location: E BRUNSWICK N.J. USA,
Posts: 3,841
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Not Ranked
Redline or Amsoil sell what you want
davids2toys Dave Redline sell GL-4 in all different weights from 70/80 up to 80/140. It's about 13.50 a quart Goggle it, there are alot of places Autozone has a 20% off if you order it on the web look at Redline 50204 and 50304. The other one is Amsoil sell gallons and quarts of 75w-90 api/gl-4 (MTG) Prices vary and its a full syn. If you have a GM store check part # 12346190. This is a GL-4 BUT might have friction adders. Try tightening the bolts on the tail shaft housing, this may top the leak depending if it's a gasket or rtv leaking. Happy holiday Rick L. |
11-24-2011, 10:32 AM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 931
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Not Ranked
Quote:
Originally Posted by RICK LAKE
davids2toys Dave Redline sell GL-4 in all different weights from 70/80 up to 80/140. It's about 13.50 a quart Goggle it, there are alot of places Autozone has a 20% off if you order it on the web look at Redline 50204 and 50304. The other one is Amsoil sell gallons and quarts of 75w-90 api/gl-4 (MTG) Prices vary and its a full syn. If you have a GM store check part # 12346190. This is a GL-4 BUT might have friction adders. Try tightening the bolts on the tail shaft housing, this may top the leak depending if it's a gasket or rtv leaking. Happy holiday Rick L. |
Rick, I have actually called Redline, they recommend the 75w-90 NS(non slippery) for the Toploader, it is crated GL5 but he said that was closest to the the EP oil that was OE in the Toploader. Also has no friction modifier at all. Another option was Redline 75w-90 MT90 this is GL4. Problem is, they are both synthetic and as I have stated, I have read and heard to stay away from synthetic in the Toploader.
I have made sure the bolts were tight, made no differance. Would you happen to know the Torque spec on these?
Happy Thanksgiving to you too...Dave
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11-24-2011, 06:44 AM
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Senior Club Cobra Member
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Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
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Not Ranked
Quote:
Originally Posted by davids2toys
I believe this is GL-5 correct? I also have heard it has friction modifiers in it.
I actually think I have 2 qts of Valvoline on the shelf but they are 80w-90 conventional
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Just looked at the bottle,it says on the front SAE 75-90 Gear Oil, on the back is says GL-5 MT-1
The 80-90 conventional is fine......use it since you have it......I have some also,have used it when I couldn't find any 75-90 same thing on the back: GL-5 MT-1
I have never noticed any difference bewteen the 75-90 and the 80-90....trans shifts perfectly with either......
David
__________________
DAVID GAGNARD
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11-24-2011, 10:33 AM
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CC Member
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Join Date: Dec 2006
Location: Southbury,
ct
Cobra Make, Engine: ERA, 428, 4 speed Toploader, Jag rear, Red with White stripes
Posts: 931
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Not Ranked
Quote:
Originally Posted by DAVID GAGNARD
Just looked at the bottle,it says on the front SAE 75-90 Gear Oil, on the back is says GL-5 MT-1
The 80-90 conventional is fine......use it since you have it......I have some also,have used it when I couldn't find any 75-90 same thing on the back: GL-5 MT-1
I have never noticed any difference bewteen the 75-90 and the 80-90....trans shifts perfectly with either......
David
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My problem with this is the GL5 rating, I have read on many occasion GL4 ONLY |
11-25-2011, 01:40 PM
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CC Member
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Join Date: Mar 2001
Location: E BRUNSWICK N.J. USA,
Posts: 3,841
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Not Ranked
Spec on rear housing for torque
davids2toys 42-50 pounds to the extendsion housing to case bolts. If bolts are new and have washers I would goto 45 ft. pounds of torque. older bolts would goto about the same. 50 sounds a little high to me even if the case is iron. I would also lock-tite the bolts with a low tension. Not sure if any of the holes have liquid holes but add teflon sealer to those bolts with same tork. Good luck. Rick L.
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