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Centering a 9" Ford Rear End??? Need Help

Discussion in 'The Hokey Ass Message Board' started by garysgun, Apr 4, 2006.

  1. garysgun
    Joined: Dec 8, 2005
    Posts: 268

    garysgun
    Member

    I want to center my 9" Ford rear end so from the rear view it looks centered
    but the drive shaft will be off center a bit. Is this any problem? I know it would be hard on drive shaft universals but for a run around town hot rod is there really any problem? The deal is you will be able to see the rear end well. Any help would be appreciated. Also is there a degree that the front of the pig should be set at? I know that the trans and rear should be within 3-5 degrees of parallel to each other. Thanks Gary M.
     
  2. Mutt
    Joined: Feb 6, 2003
    Posts: 3,218

    Mutt
    Member

    No problem with the offset. The driveline should be equal but opposite, with 3-5 deg. being optimum. Do a search - driveline setup has been covered extensively.


    Mutt
     
  3. This is funny, 'cause I need to un-center the 9" rear end under my '36 3-window so the pinion (driveshaft ) is centered. I think shortening the long side 4" will do what I want.


     
  4. Pro builders and home builders have been centering the rearends in hotrods for years without any problems.
     
  5. Paul
    Joined: Aug 29, 2002
    Posts: 16,982

    Paul
    Editor

    if a guy was real savvy
    he could snag the appropriate length axle from a donor
    so's all he needed to do would be to shorten the housing

    or he could grab a rear that already has a centered pumpkin
    ..like the early Bronco..for instance..
     
  6. NickGee
    Joined: Feb 16, 2006
    Posts: 42

    NickGee
    Member

    Another option, install it like it is. It works well and if this is a driver most rodders behind you will not even care. It is not that noticable.
     
  7. Larry T
    Joined: Nov 24, 2004
    Posts: 7,921

    Larry T
    Member

    The pinion in a Ford is about 1 1/8" off center. So it should take about 2 1/4" off one axle to get it back, if the housing is centered to start with.

    I know it's a whole other deal, but I've seen racecars with the housing centered and the engine and transmission offset an inch to the p***angers side. It offsets the drivers weight and gives you a little more room for steering, pedals and such.

    Off to work.
     
  8. butch27
    Joined: Dec 10, 2004
    Posts: 2,846

    butch27
    Member

    Never knew the early Bronco rear was centered. Worked at Ford - building them.
     
  9. Paul
    Joined: Aug 29, 2002
    Posts: 16,982

    Paul
    Editor

    I knew the pinions were offset but didn't realize the offset centered the housing until I put a tape on one
     
  10. krylon32
    Joined: Jan 29, 2006
    Posts: 10,902

    krylon32
    ALLIANCE MEMBER
    from Nebraska

    Have used 100s of housing centered rears in ch***is and have had no problems, just pay attention to your pinion angle.
     

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