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Ross Box Replacement

Discussion in 'Early Jeep Restoration and Research' started by Unkel Dale, Jun 10, 2019.

  1. Jun 10, 2019
    Unkel Dale

    Unkel Dale delivery on my Jeep from Ft. Campbell, Ky.

    Pittsburgh, Pa.
    Joined:
    Feb 3, 2013
    Messages:
    679
    My steering "sticks" then turning left and way too much wheel "slop" or play now. What IS failing? By "slop" or play to describe the issue when actually driving is to write the steering wheel turns and does not move the attached steering components AT the front wheels. I am reusing a Ross box system. I have the actual un rebuilt lower box as a spare. I will use the current steering shaft and attached steering wheel and tube and pinion and steering link bars to the axles. What do I need to mark with some indication of proper realignment for re assembly where? Are my question right? Thanks
     
  2. Jun 10, 2019
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member Sponsor

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    5,825
    Sounds like you've lost one of the two pins on the sector shaft. If you have a V6 box the pins are available on their own, if an f4 box you'll need a completed sector shaft & quality can be poor.

    You don't really need to mark anything before pulling it apart, on reassembly with the steering wheel centered the pitman arm hangs straight down, that's really about all there is to it.
     
  3. Jun 10, 2019
    TIm E

    TIm E Member Sponsor 2019 Sponsor

    NW Arkansas
    Joined:
    Mar 2, 2017
    Messages:
    634
    If you clean-up the Ross box and components really good, there is actually an alignment line stamped on both the sector shaft and pitman arm to ensure you get the splines aligned correctly.
     
  4. Jun 11, 2019
    Unkel Dale

    Unkel Dale delivery on my Jeep from Ft. Campbell, Ky.

    Pittsburgh, Pa.
    Joined:
    Feb 3, 2013
    Messages:
    679
    So remove the cover plate for inspection and see what is MISSING and or flats on the cones? Yes v6, m38a1 steering box type? I need the guy that looks like a huge point spanner that goes thru the bottom to the pitman arm?
     
  5. Jun 11, 2019
    TIm E

    TIm E Member Sponsor 2019 Sponsor

    NW Arkansas
    Joined:
    Mar 2, 2017
    Messages:
    634
    If it is the larger M38A1 or V6 Ross box, you will need the 15/16" sector shaft. Quality of the reproduction ones has been questionable. I have not tried one of these myself, but I am hearing that these are good quality...and a reasonable price. The replacement 15/16" sector used to cost nearly $300 and was likely junk. Do some searches on here, maurywhurt has a good write-up on the rebuild process.

    Jeep Willys M38A1 M170 ROSS 15/16" Steering box sector shaft kit 807478 G758 | eBay
     
  6. Jul 4, 2019
    Unkel Dale

    Unkel Dale delivery on my Jeep from Ft. Campbell, Ky.

    Pittsburgh, Pa.
    Joined:
    Feb 3, 2013
    Messages:
    679
    thanks Tim E, GONNA GO READ THE LINK
     

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