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Explorer 8.8 and pinion offset

Discussion in 'Off Topic Hot Rods & Customs' started by Roothawg, Feb 19, 2026.

  1. Roothawg
    Joined: Mar 14, 2001
    Posts: 26,274

    Roothawg
    ALLIANCE MEMBER

    I used the 8.8 in Mama Root's 55, which I narrowed and used two short axles to center it all up.

    I am collecting parts for the 56 F100 and I was pondering using the same rear. I was trying to wrap my head around how this rear end could be used in millions of SUV's with this offset. Did Ford offset the engine by 3 inches? Does it even matter?

    I was thinking about installing it as is, without the shortening the right side tube. It uses the flat plate type of u joint.
     
  2. jimmy six
    Joined: Mar 21, 2006
    Posts: 17,396

    jimmy six
    ALLIANCE MEMBER

    Mines down to 56” for my 56 Victoria. The wider F-150 drum brakes worked perfect for me. All the useless castings were cut off the center area along with unused suspension brackets. I know 70’s vans were offset to move the engine to the p***enger side. IMG_2009.jpeg
     
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  3. 57 Fargo
    Joined: Jan 22, 2012
    Posts: 6,326

    57 Fargo
    Member

    Just put it in, the driveshaft doesn’t care if it’s running straight to the car
     
    rockable likes this.
  4. twenty8
    Joined: Apr 8, 2021
    Posts: 3,900

    twenty8
    Member

  5. Roothawg
    Joined: Mar 14, 2001
    Posts: 26,274

    Roothawg
    ALLIANCE MEMBER

    Holy cow. That was spirited. I never saw that thread. Thanks.
    I may mock it up and see how much offset it actually has. 3" centers up the tube and makes it match the other side, but I don't ***ume that the pinion will mirror that number exactly. I would have to jack the 55 up and look/measure it. I have a 9" under it, but it will cost more to overhaul the pumpkin in it, than to swap this out. Plus, I get limited slip, 3.73 gears and disc brakes with a parking brake.
     
    twenty8 likes this.
  6. FrozenMerc
    Joined: Sep 4, 2009
    Posts: 3,482

    FrozenMerc
    Member

    Yes, Ford offset the engine in the Explorer to clear the front diff on Dana TTB front suspension in the first generation.

    No, the driveshaft doesn't care if it is centered or not.
     
    Roothawg likes this.
  7. oldiron 440
    Joined: Dec 12, 2018
    Posts: 4,244

    oldiron 440
    Member

    The difference is 2 7/8” side to side on the Explorer 8.8.
     
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  8. gene-koning
    Joined: Oct 28, 2016
    Posts: 6,259

    gene-koning
    Member

    The rear end offset usually becomes more of a problem as the driveshaft gets shorter. Its all about the angles the U joints are functioning at, as long as the angles are within the operating range of the U joints, all is good.

    And yes, there are a lot of vehicles where the drive trains are not on the vehicle center line of the ch***is.
     
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  9. Roothawg
    Joined: Mar 14, 2001
    Posts: 26,274

    Roothawg
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    I shortened the one in the 55, because it was gonna be too wide anyway. This one is the same (or close) as the 53-72 pickup.
     
  10. Mimilan
    Joined: Jun 13, 2019
    Posts: 1,276

    Mimilan
    Member

    Kerry and his friend put a '95 explorer 8.8 into a 55 Chevy. It was less 1/5" narrower than the stock Chevy rear

    The biggest part of the job was cutting off the old spring pads and cleaning it up.
    Redrilling the PCD was easy on C-Clip axle flanges
    The offset driveshaft never was an issue in the tunnel [or caused any vibrations]

    He also did a Cut'n'Shut on 2 x 8.8 rear ends [Using 2 x long axles for a 3rd gen Camaro swap AND 2 x short axles on the leftover which was sold]
    He ended up with one at 62.675" for the Camaro and the other at 56.925"

    He did both cuts and welds without using a truing bar and got it straight
    The secret was machining up slip tubes, which he put in the freezer
    He heated the ends with a hot air gun then slipped the tube in and plug welded.
    Then the short ends [with the slip tube] went back into the freezer for another round

    plug welds were needed to hold the slip tub in the ends when it was "tapped" into the other half
     
    Last edited: Feb 20, 2026
    Roothawg likes this.
  11. Roothawg
    Joined: Mar 14, 2001
    Posts: 26,274

    Roothawg
    ALLIANCE MEMBER

    I just used a giant pipe cutter. After about 4 hours. I got tired of using this dull, rental cutter. I used the groove I created to center my cutoff wheel. I used some angle iron to center it......well here, you can just look at the thread.
    https://www.jalopyjournal.com/forum/threads/the-mild-custom-transformation-mamas-55.1119265/page-4
     

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