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SportTrac Discussion
Projects
D2 diff refill.
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<blockquote data-quote="Pat in RI" data-source="post: 1052722" data-attributes="member: 78596"><p>My D2 LS diff on my 03 ST was making lots of noise. According to Ford it is sealed for the life of the truck. It has been working but really noisy since I bought the truck. I bought a new heavy duty rear 10 bolt cover with gasket from Amazon. I removed the old cover which drained the 75/140 fluid into a catch pan. I completely cleaned the inside of the diff and checked for metal filings etc, found nothing. I tapped the bottom of the diff and top ( clearing the carrier assembly and retainer) using a 1/4" NPT tap and installed 2 tapered plugs. I refilled the diff with 3 quarts of Valvoline 75/140 with friction additive and tightened the top fill plug. The diff is much quieter and no leaks anywhere.</p></blockquote><p></p>
[QUOTE="Pat in RI, post: 1052722, member: 78596"] My D2 LS diff on my 03 ST was making lots of noise. According to Ford it is sealed for the life of the truck. It has been working but really noisy since I bought the truck. I bought a new heavy duty rear 10 bolt cover with gasket from Amazon. I removed the old cover which drained the 75/140 fluid into a catch pan. I completely cleaned the inside of the diff and checked for metal filings etc, found nothing. I tapped the bottom of the diff and top ( clearing the carrier assembly and retainer) using a 1/4" NPT tap and installed 2 tapered plugs. I refilled the diff with 3 quarts of Valvoline 75/140 with friction additive and tightened the top fill plug. The diff is much quieter and no leaks anywhere. [/QUOTE]
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SportTrac Discussion
Projects
D2 diff refill.
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