4.10 | Ford Explorer Forums

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4.10

  1. Wrath

    Input pinion shaft on rear 8.8 wont budge!

    Hey everyone, me again. I'm in the rear diff of my limited to replace bearings and a bad ring gear. The new ring gear comes with its own pinion and shaft, so I'll have to set the depth and all that biz. The trouble I'm having now is getting the old pinion shaft out. I've got everything else out...
  2. 2

    National Differential Axle

    I’m looking to buy a remanufactured 4.10 rear axle and came across a company called National Differential. They seem to have good reviews based on google. They’re asking $1500 for a reman 4.10 LSD + $250 shipping. But at that price I think it’d be better to buy from a more established company...
  3. J

    deep love for the expy, want another one.

    ive always loved the explorer sport, not so much the 4door model (dont want to deal with all that extra weight + fuel usage lol) i used to have a 2001 explorer sport SOHC, automatic RWD and it had 3.73 final that i swapped to 4.10 with a locker, had some all terrain tires on it and put a bit of...
  4. 3

    To do a rear differential oil service or not?

    I have a 2000 explorer RWD with the 4.10 limited slip. My rear differential has near been service yet, 154k miles. I've seen ideas that it should be done at 150 and then every 30-60 afterwards... In my owners manual i read it has 75w140 synthetic gear oil that they say never needs serviced in...
  5. N

    Rear End and Front End Swap

    I have a 97 SOHC 4x4 Explorer with the 45 Rear axle code. Per my research I see that that means I have the 3.55 open rear end. I have had a bad seal in the front end for a long time and now finally I think the bearings are going out on at least one of the ends in the FRONT end. The vehicle is...
  6. T

    Explorer ring & pinion question.

    Hello, i've been doing some research and cant find the answers i'm looking for. I have a 98 explorer sport, and i found a great deal on some 4.10 gears out of a 2001 ranger, but i know the ranger 8.8's are only 28 spline, so my question is, will they work in my explorer? Thanks for any help, and...
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