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Sum ting wong here

  • Thread starter Thread starter limp
  • Start date Start date Sep 11, 2022
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limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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Florida
Sep 12, 2022
#21
  • Sep 12, 2022
  • #21
revhead347 said:
Eaton specifically says to used mineral based oil, not synthetic, with their truetrac differentials.

Kurt
Click to expand...
This is correct... Says this in the instructions I received with it......
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
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Acworth, GA
Sep 12, 2022
#22
  • Sep 12, 2022
  • #22
limp said:
This is correct... Says this in the instructions I received with it......
Click to expand...

You are going to fall in love with that differential. It completely changes the car. It's the best money I have ever spent on my Mustang hands down. Now get thine ass down to O'Reilly's and enjoy that the only cost savings part of buying a stupid ass expensive differential is that you can buy the cheapest gear oil on the shelf.

Kurt
 
Reactions: 7991LXnSHO and limp

96pushrod

I think they're a little easier to get off
5 Year Member
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Sep 13, 2022
#23
  • Sep 13, 2022
  • #23
limp said:
This is correct... Says this in the instructions I received with it......
Click to expand...
Eaton will say not to use synthetic, because they don’t know if it will hinder performance, but most all will indeed work. They tend to overcomplicate things.

I can tell you on my locker, I run redline shockproof and it works every bit the same as it did with mineral based oil, zero difference at all. Unless you’re running a clutch style differential then that’s always what I recommend.
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,296
1,640
214
Acworth, GA
Sep 15, 2022
#24
  • Sep 15, 2022
  • #24
96pushrod said:
Eaton will say not to use synthetic, because they don’t know if it will hinder performance, but most all will indeed work. They tend to overcomplicate things.

I can tell you on my locker, I run redline shockproof and it works every bit the same as it did with mineral based oil, zero difference at all. Unless you’re running a clutch style differential then that’s always what I recommend.
Click to expand...
So you are saying you spent way more money on oil, and it didn't "hinder" performance as the pro. What was the upside to this story?

Kurt
 

96pushrod

I think they're a little easier to get off
5 Year Member
May 15, 2018
1,530
871
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Savannah
Sep 15, 2022
#25
  • Sep 15, 2022
  • #25
revhead347 said:
So you are saying you spent way more money on oil, and it didn't "hinder" performance as the pro. What was the upside to this story?

Kurt
Click to expand...
To use whatever you want.
 
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manicmechanic007

5 Year Member
Sep 26, 2017
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Sep 17, 2022
#26
  • Sep 17, 2022
  • #26
You sure are loosing some performance using the thicker conventional oil
Surprised they would say that in their nomenclature
 

General karthief

wonder how much it would cost to ship you a pair
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polk county florida
Sep 17, 2022
#27
  • Sep 17, 2022
  • #27
manicmechanic007 said:
You sure are loosing some performance using the thicker conventional oil
Surprised they would say that in their nomenclature
Click to expand...
Considering he is using a 9" rear which is # 1 heavier #2 hp parasite, I think using a thicker oil a non issue
 
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limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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Sep 17, 2022
#28
  • Sep 17, 2022
  • #28
manicmechanic007 said:
You sure are loosing some performance using the thicker conventional oil
Surprised they would say that in their nomenclature
Click to expand...
Big mama in her mini van, drinking her 82 oz cola beat me to my supermarket parking spot the other day...... Darn that thick oil
 
Last edited: Oct 5, 2022

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,463
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Florida
Sep 17, 2022
#29
  • Sep 17, 2022
  • #29
General karthief said:
Considering he is using a 9" rear which is # 1 heavier #2 hp parasite, I think using a thicker oil a non issue
Click to expand...
but aint it purty......
 
Reactions: manicmechanic007, General karthief and 7991LXnSHO
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chrlsful

Active Member
Mar 6, 2021
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Lawrence Swamp, S.Amherst, MA
Sep 17, 2022
#30
  • Sep 17, 2022
  • #30
post 22 reminds me of lack of need for any spec lube for
Detroit (Eaton) TrueTrac (torsen). But that's a LS locker.
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,296
1,640
214
Acworth, GA
Sep 17, 2022
#31
  • Sep 17, 2022
  • #31
manicmechanic007 said:
You sure are loosing some performance using the thicker conventional oil
Surprised they would say that in their nomenclature
Click to expand...

First off 80W-90 is not that thick. Also, if using conventional oil is better for the friction requirements, then that's a huge gain in performance. I don't pretend to know better than the engineers who design this stuff, and the instructions clearly state to use a particular oil.

Kurt
 
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7991LXnSHO

wanna catch the space herp
10 Year Member
Sep 1, 2010
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Kearney, NE
Sep 18, 2022
#32
  • Sep 18, 2022
  • #32
limp said:
but aint it purty......
Click to expand...
Does synthetic gear oil stink like the standard stuff, especially after use? I might use Royal Purple if it was grape scented. And for CT and ear worm reasons, I'm not going to comment on a nice looking, big rear end. Sir Mix A Lot had a hit about that.
 
Last edited: Sep 18, 2022

manicmechanic007

5 Year Member
Sep 26, 2017
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Roy, Utah
Sep 18, 2022
#33
  • Sep 18, 2022
  • #33
Regardless of how thick you think conventional oil is
Synthetic is thinner and offers a performance benefit
 

General karthief

wonder how much it would cost to ship you a pair
5 Year Member
Aug 25, 2016
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polk county florida
Sep 18, 2022
#34
  • Sep 18, 2022
  • #34
7991LXnSHO said:
Does synthetic gear oil stunk like the standard stuff, especially after use? I might use Royal Purple if it was grape scented. And for CT and ear worm reasons, I'm not going to comment on a nice looking, big rear end. Sir Mix A Lot had a hit about that.
Click to expand...
Yeah,conventional gear oil is in a league all it's own in the smell and stain departments. The oder can repel wildlife.
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,463
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Florida
Sep 18, 2022
#35
  • Sep 18, 2022
  • #35
7991LXnSHO said:
Does synthetic gear oil stunk like the standard stuff, especially after use? I might use Royal Purple if it was grape scented. And for CT and ear worm reasons, I'm not going to comment on a nice looking, big rear end. Sir Mix A Lot had a hit about that.
Click to expand...
Now a 9" is not THAT BIG...... LOL
 

revhead347

Apparently my ex-husband made that mistake.
20+ Year Stangneter
Jun 14, 2004
9,296
1,640
214
Acworth, GA
Sep 18, 2022
#36
  • Sep 18, 2022
  • #36
7991LXnSHO said:
Does synthetic gear oil stink like the standard stuff, especially after use? I might use Royal Purple if it was grape scented. And for CT and ear worm reasons, I'm not going to comment on a nice looking, big rear end. Sir Mix A Lot had a hit about that.
Click to expand...

Yes, stinks just as bad if not worse. If you get it in your hair, you are sleeping alone for 2 weeks.

Kurt
 
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chrlsful

Active Member
Mar 6, 2021
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38
Lawrence Swamp, S.Amherst, MA
Sep 18, 2022
#37
  • Sep 18, 2022
  • #37
"My God Becky"
baby got back

my hooptie, his car~
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,463
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Florida
Oct 4, 2022
#38
  • Oct 4, 2022
  • #38
OK, so it got delivered on Sat after the Hurricane... Came to around $6.70 a qt. B4 tax....
I opened the box and the gear oil smell came out... LOL... In todays world of syn oils I hadn't smelled that smell in a long time...LOL...
 
Last edited: Oct 6, 2022
Reactions: revhead347 and chrlsful
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