advice needed
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Senior User
Joined: Jan 2010
Posts: 240
Likes: 0
From: blue springs Missouri
advice needed
00, f250, 2wd, 221450 miles, would like to change the rear dif fluid and the tranny fluid. I got the truck when it had 194768 miles and I have no clue if it was ever done before. So my question is should I and if so what fluid should I go with. Also anything else I should do, oil was done, a couple days ago.
Go Bills !
Joined: Jan 2008
Posts: 2,778
Likes: 65
From: Buffalo, NY
I would do it.. It is easy and probably the most neglected maintenance item "ever"
Ordered a 08 finned aluminum cover from Ed. $60.
Stopped by the hardware store for longer bolts. (used stainless socket head cap screws/washers)
Stopped by Napa to picked up oil and friction additive and gasket goop (forget what goop i used)
Pulled the cover and let it drip over night.
Goop and new cover.
Filled with oil. Added a little additive. Think 4oz. Went for a drive. I think it needs a bit more additive due to having a slight vibration when turning with the heavy camper. Not to worried about it. It is so slight and barely noticiable. All this was a year ago or so.
Ordered a 08 finned aluminum cover from Ed. $60.
Stopped by the hardware store for longer bolts. (used stainless socket head cap screws/washers)
Stopped by Napa to picked up oil and friction additive and gasket goop (forget what goop i used)
Pulled the cover and let it drip over night.
Goop and new cover.
Filled with oil. Added a little additive. Think 4oz. Went for a drive. I think it needs a bit more additive due to having a slight vibration when turning with the heavy camper. Not to worried about it. It is so slight and barely noticiable. All this was a year ago or so.
Posting Guru
Joined: Jul 2007
Posts: 1,360
Likes: 0
From: Charles Town, WV
Yes, change them both. Dan is spot on with the fluid type. There's a great write up on a full tranny fluid change here, Changing ATF Fluid in a E4OD and 4R100 transmission .: Articles, I just did mine. Not that bad of a job at all.
Don't worry, you're not flushing the tranny with chemicals, just pushing new fluid through it, the cooler, and lines. Do both and you'll have a solid starting point for fluid maintenance
.
Don't worry, you're not flushing the tranny with chemicals, just pushing new fluid through it, the cooler, and lines. Do both and you'll have a solid starting point for fluid maintenance
.
Senior User
Joined: May 2007
Posts: 393
Likes: 0
FWIW, when I drained/filled mine I used a non-MotorCraft friction modifier. I never quite got rid of a slight chattter from the LS while turning. Drained/filled again using MotorCraft friction modifer and it was much better. And, yes I also used Full Synth LS Mobil 1 gear oil.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
I used the same Valvoline gear oil as Dan and didn't have to add friction modifier. As you can see on the label it says Limited Slip
so it has some friction modifier in it, but in some cases additonal friction modifier is needed. Test before adding. To much friction
modifier and you will turn an LS diff into an open diff.
so it has some friction modifier in it, but in some cases additonal friction modifier is needed. Test before adding. To much friction
modifier and you will turn an LS diff into an open diff.
