Looking at replacing to a 9" rear

Discussion in 'Drag Racing' started by pil1sbury, Feb 16, 2016.

  1. pil1sbury

    pil1sbury MavBoy living life

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    Ive been looking at replacing my 8" rear for a 9" rear. I've put some posts on some of my local fb pages for a 9" rear but idk if I want to buy a used or new rear. I've talked to a few shops and I've looked at quick performance and moser.
    So what's y'alls experience with this and what did you end up going with. IMG_20151213_182029.jpg
     
  2. HarleyGA

    HarleyGA Member

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    I went with Quick Performance.
     
  3. Hotrock

    Hotrock Rick, an MCCI Member Supporting Member

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    Why do you want to invest in a 9" differential?
     
  4. HarleyGA

    HarleyGA Member

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    The engine I had built makes too much power for the 8 inch. I needed the 31 spline axle shafts and I wanted trac lok and bigger brakes.
     
  5. Mavric65

    Mavric65 Member

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    I have been looking at Quick Performance also .... HarleyGA did you get it made to stock width or did you get the 65 mustang width which is 3/4 of a inch wider ... it works out to 3/8 of a inch on each side and thought I wouldn`t have to run spacers behind the wheel.
     
  6. Mavric65

    Mavric65 Member

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    In my last maverick I broke two 8 inches both times snapped a axel and ring and pinion... very expensive wish I would have just spent the money on a 9 inch it would have saved me money in the long run
     
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  7. HarleyGA

    HarleyGA Member

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    Here is what I ordered.
    $680 - 9" Housing/Axle Package (1973 Ford Maverick)
    - Big Ford (Old-Style) Housing Ends
    - 51-1/4" Housing
    - 43" Center to Center on Perches
    - New Axles, Axle Bearings, Wheel Studs, & Retainers
    - 31 Spline, 5 on 4-1/2" Bolt Pattern, 1/2" Studs
    $820 - Center Section (Assembled)
    - New 31 Spline Trac-Lock Posi
    - New Motive Performance Gears (3.70 Ratio)
    - New Timken USA Bearings
    $300 - 11" Drum Brake Kit (New Drums, New Shoes, & New Internals)
     
  8. Mavric65

    Mavric65 Member

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    Thanks for the info
     
  9. pil1sbury

    pil1sbury MavBoy living life

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    I want to do the swap because I'm gonna mini tub the car, so I'm moving the leaf springs and I figured I'll just put a strong rear end. The car is gonna be a street/strip car 10" wide tire with either 3.60,3.70,3.89, I don't think it's gonna happen but 4.10
     
  10. Rudydog

    Rudydog Member

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    I did the whole Quick Perf. 9" deal, went with 35 spline Moser axles w\ Strange ctr. section. And the Youkon Grizzley locker. Very happy with it. What you get is a cut down truck rear I believe, and they put new tubes and ends on it. I went with the same ends as my 8" so I could use the stock rear drums, just hung them up for the install, didn't even have to bleed them. On a side note, because of the bigger tubes, it lowered my Comet a little..
     
    Last edited: Feb 17, 2016
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  11. Streetnstrip

    Streetnstrip Member

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    I used quick performance on my race car years ago & was pleased with the products from them
     
  12. Crazy Larry

    Crazy Larry Member

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    What did you use for driveshaft?
     
  13. aussie maverick

    aussie maverick Member

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    Due to limited resourced for Mavericks over here, I recently gave my 8inch housing and a 9inch housing to a guy, he built a housing using the 8inch tubes, cut to length 31 spline axles, 1/2 inch studs @$650. I then purchased a Yukon locker, Richmond light weight and polished 3.89 gearset, and strange centre section. Total cost back in my car was just under $2000. I'm happy with that as was quoted $3500-4000 to have one built
     
  14. Rudydog

    Rudydog Member

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    I'm still running the stock driveshaft. Had to switch up the u-joint though.
     
  15. Crazy Larry

    Crazy Larry Member

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    No difference in length?
     

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