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Old 10-08-2005, 15:01   #1 (permalink)
Drew
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Gear Oil

What weight gear oil for rear differential is specified by Ford for a
2001 Excursion with a 7.3L Diesel, 4WD, Limited Slip Differential,
Automatic Trans. ? I had to put a new R&P gearset in and had mechanic
put in first gearoil but now I need to change it.
Could someone lead me to a Ford source ?
LMK,
Thanks,
Drew

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Old 10-08-2005, 16:01   #2 (permalink)
Jim Warman
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Re: Gear Oil

Old spec was 75W90 but Ford has since updated to 75W140.... Sorry, can't
remember TSB number for the updated oil spec.


"Drew" <andrews10@charter.net> wrote in message
news:1128806012.880992.285780@z14g2000cwz.googlegroups.com...
> What weight gear oil for rear differential is specified by Ford for a
> 2001 Excursion with a 7.3L Diesel, 4WD, Limited Slip Differential,
> Automatic Trans. ? I had to put a new R&P gearset in and had mechanic
> put in first gearoil but now I need to change it.
> Could someone lead me to a Ford source ?
> LMK,
> Thanks,
> Drew
>



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Old 10-08-2005, 17:01   #3 (permalink)
nospam.clare.nce@sny.der.on.ca
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Re: Gear Oil

On Sat, 08 Oct 2005 22:14:52 GMT, "Jim Warman"
<mechanic@tenalpsulet.net> wrote:

>Old spec was 75W90 but Ford has since updated to 75W140.... Sorry, can't
>remember TSB number for the updated oil spec.
>
>
>"Drew" <andrews10@charter.net> wrote in message
>news:1128806012.880992.285780@z14g2000cwz.googlegroups.com...
>> What weight gear oil for rear differential is specified by Ford for a
>> 2001 Excursion with a 7.3L Diesel, 4WD, Limited Slip Differential,
>> Automatic Trans. ? I had to put a new R&P gearset in and had mechanic
>> put in first gearoil but now I need to change it.
>> Could someone lead me to a Ford source ?
>> LMK,
>> Thanks,
>> Drew
>>


What about the LSD? Special oil, oe friction modifier?

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Old 10-08-2005, 19:01   #4 (permalink)
Drew
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Re: Gear Oil

I believe the 75W 140 is what the mechanic told me, I bought some 75w90
bc that's what the parts house pulled up in his book, and somehow that
did not seem right. I'm figuring the friction modifier is basically
the same, all I remember is that he said it would need two small jars,
which I have.
Thanks sincerely for the help. I'll make it to Advance Auto tomorrow
and get the right stuff.
Thanks again,
Drew

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Old 10-09-2005, 18:01   #5 (permalink)
Jeff
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Re: Gear Oil


"Drew" <andrews10@charter.net> wrote in message
news:1128806012.880992.285780@z14g2000cwz.googlegroups.com...
> What weight gear oil for rear differential is specified by Ford for a
> 2001 Excursion with a 7.3L Diesel, 4WD, Limited Slip Differential,
> Automatic Trans. ? I had to put a new R&P gearset in and had mechanic
> put in first gearoil but now I need to change it.
> Could someone lead me to a Ford source ?


How about your owner's manual. It should have the info.

Jeff

> LMK,
> Thanks,
> Drew
>



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