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  1. 99-03 7.3L General Discussion
    99.5 7.3 2wd what rear diff fluid do i need, how much, and do i need an additive?
  2. Non-Powerstroke General Discussion
    Hey guys. Working on my rear differential. Ford/Sterling 10.25 - 91 F250 idi. 7.3. When i Removed the pinion seal, there wasnt much gear oil that had dripped out. (Less than a shot glass) and I recognized that more fuild had common drain out in some instructional videos I watched. Now keep in...
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