When replacing the diff fluid is the gasket reusable?
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Posting Guru
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From: Amarillo, TX
When replacing the diff fluid is the gasket reusable?
And since we are on the subject what oil is recommended? And how much does it need? Also does it need the track lock additive? And does it need it for the front?
As far as the gasket goes, if it not reusable does it use a gasket or does it just use RTV?
As far as the gasket goes, if it not reusable does it use a gasket or does it just use RTV?
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Joined: Apr 2009
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Synthetic in the rear-90/145 and traction additive if you have limited slip and no gasket just RTV. Front takes 85/90, no additive and again no gasket. I used Mobil One in the rear and Valvoline in the front
Regards
Regards
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From: Amarillo, TX
Its been a while, are the traction activities a Ford only item?
Thanks for the reply, how many bottles will they hold?
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From: Lakewood, Ca.
Here's some good stuff on that....from the 6.0 tech folder sticky at the top of this forum:
https://www.ford-trucks.com/forums/3...d-in-tech.html
http://www.guzzle7pt3.com/fdiff.php
http://www.guzzle7pt3.com/rdiff.php
https://www.ford-trucks.com/forums/3...d-in-tech.html
http://www.guzzle7pt3.com/fdiff.php
http://www.guzzle7pt3.com/rdiff.php
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Posting Guru
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From: Amarillo, TX
Here's some good stuff on that....form the 6.0 tech folder sticky at the top of this forum:
https://www.ford-trucks.com/forums/3...d-in-tech.html
Welcome to guzzle's Front Differential Maintenance Web Page
Welcome to guzzle's Rear Differential Maintenance Web Page
https://www.ford-trucks.com/forums/3...d-in-tech.html
Welcome to guzzle's Front Differential Maintenance Web Page
Welcome to guzzle's Rear Differential Maintenance Web Page
Thanks again, reps to ya.
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Joined: Oct 2004
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From: N. Carolina
Don't over fill either ... spec says 3.45 qts & I tried to cram that in there & ignored the "level below the fill hole" spec.
Pinion seal leaked and slung oil everywhere afterwards. I had to pop the fill plug off & take some fluid out until the level was in spec.
Best thing to do is cut some small strips of paper, bend them in a "L" shape, and use these to check the level depth below the fill plug.
Pinion seal leaked and slung oil everywhere afterwards. I had to pop the fill plug off & take some fluid out until the level was in spec.
Best thing to do is cut some small strips of paper, bend them in a "L" shape, and use these to check the level depth below the fill plug.
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Lead Driver
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From: Corvallis, OR
If you're going to give advise, make sure you have the correct info. Rear takes 75w-140 synthetic, front takes 80w-90 and most use a 75w-90 synthetic. The rear may or may not need the friction additive, depending on which fluid you use. With Royal Purple and some other high grade synthetics, you don't need the additive. The best advise is to add none, then add half bottle of the modifier at a time if you experience chatter in corners, allowing time for it to work into the clutches before adding more. Spec is around 3.5 quarts, so you'll need to buy 4.
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From: Moyock, NC
Yeah...I used Mobil1 75w-140 (LS) doesn't require friction modifier...about $17 a qt. and I changed the cover to the '08MY cover from FordPartsGuy for $45 ...in the end it cost me $155
Lead Driver
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From: Corvallis, OR
Conventional doesn't stand up to the pressures as well. You could probably get away with a similar weight conventional oil, but it would shorten the service interval. Just do it right the first time and forget about it.
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From: Amarillo, TX
Thanks for the help!
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