What rear diff lube?
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Joined: Mar 2007
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What rear diff lube?
Based on the picture below I believe that My '01 X V-10 has a limitted slip diff. w/ 3.73s. I'm going to open up the diff. this weekend, check out the gears, and re-fill it (maybe w/ synthetic?) but I'm having trouble figuring out what fluid to put in it.
I'm no mechanic so forgive the ignorance - but what else do I need to know to get the correct lube? Dana? (don't even know what that means!)
I tow a 7800# TT. Want it to be ready for the Rockies - any need for a diff. temp. gauge?
I'm no mechanic so forgive the ignorance - but what else do I need to know to get the correct lube? Dana? (don't even know what that means!)
I tow a 7800# TT. Want it to be ready for the Rockies - any need for a diff. temp. gauge?
Posting Guru
Joined: Aug 2004
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From: Round Rock, TX
3.5 qts of 75-140 gear oil .. synth if you want .. and you need to get some of Ford's Friction Modifier for the limited slip ..
read this page, very detailed http://guzzle.rbmicro.com/rdiff.html
read this page, very detailed http://guzzle.rbmicro.com/rdiff.html
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Originally Posted by TNT in Round Rock
read this page, very detailed http://guzzle.rbmicro.com/rdiff.html
Not to be dense (oops, too late
) but how do I know that I have a "Sterling 10.5 Rear Differential"?Thanks again!
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I probably ought to do the front as well with 100K on the truck. I read in posts that there may be a "dana 50" or "dana 60" depending on the year. The above how-to has a link to another how-to on the dana 60. Would it use the same type of fluid if mine is a 50?
You guys/gals are soooo cool! Helping people like me who have little to no experience is a great thing. Might even help to keep me out of the dealership service center and that's always good!
You guys/gals are soooo cool! Helping people like me who have little to no experience is a great thing. Might even help to keep me out of the dealership service center and that's always good!
Posting Guru
Joined: Aug 2004
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From: Round Rock, TX
Senior User
Joined: Nov 2006
Posts: 425
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From: Brooksdale, ON
if im not mistaken ALL years of Excursions had a 50 in the front. Monsta would be the one that knows for sure. HE's Da man full of info.
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Fleet Owner
Joined: Jan 2004
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From: Brentwood,CA
The diff came with 75w140 synthetic from factory and 4 oz of friction modifier. So if it does have the L/S then you will need the modifier.
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