Ford 8" differential Upgrade

Discussion in 'Technical' started by Mav06, Jan 2, 2011.

Page 1 of 2
  1. Mav06

    Mav06 Member

    Joined:
    Jan 2, 2011
    Messages:
    17
    Likes Received:
    0
    Trophy Points:
    8
    Location:
    El Paso
    Vehicle:
    1970 2Dr 200 c.i I6
    Hello, all I currently have a 70 maverick with an 8" 4 lug rear end. I'm trying to upgrade it to a 5-lug. I've read on another post that you cannot interchange just the axles. What is the best way to go? Should I rebuild the differential with all the necessary parts to do what I want or should I just look for a donor car? Thanks!!:tiphat:
     
    Mav06, Jan 2, 2011
    #1
  2. rwbrooks50

    rwbrooks50 Member Supporting Member

    Joined:
    Aug 13, 2006
    Messages:
    1,066
    Likes Received:
    33
    Trophy Points:
    158
    Location:
    Forney Texas
    Vehicle:
    71 Maverick & 63 Ranchero
    I have a 8" 5 lug unit. I will sell for $200.00 plus shipping.

    PM me if interested.

    Rick
     
    rwbrooks50, Jan 2, 2011
    #2
  3. ratio411

    ratio411 Member

    Joined:
    Apr 22, 2002
    Messages:
    6,060
    Likes Received:
    21
    Trophy Points:
    138
    Location:
    Pensacola
    Vehicle:
    1972 Sprint and 1975 Maverick
    Find a Granada/Monarch 8" rear.
    All are 5 lugs, and in an I6 car, you just might find a 9" rear.
    The computer tells the yards I know to sell for about 85 bux each.
    I got a 9" that way. The online network said the rear was worth 85 bux, so that is what they charged me. The 9" came from an I6 Monarch.
     
    ratio411, Jan 2, 2011
    #3
  4. 3154tm

    3154tm Member

    Joined:
    Dec 10, 2010
    Messages:
    25
    Likes Received:
    7
    Trophy Points:
    25
    what's the difference in width between the granada/monarch and the maverick axle?
     
    3154tm, Jan 2, 2011
    #4
  5. rthomas771

    rthomas771 Member

    Joined:
    Jan 22, 2008
    Messages:
    8,074
    Likes Received:
    962
    Trophy Points:
    498
    Garage:
    1
    Location:
    GA
    Vehicle:
    '74 Maverick 302 5-Speed.'60 Falcon V8. '63.5 Falcon HT
    I haven't measured a Maverick but the Granada is 57-3/4" outside drum to outside drum.

    [​IMG]
     
    rthomas771, Jan 2, 2011
    #5
  6. ratio411

    ratio411 Member

    Joined:
    Apr 22, 2002
    Messages:
    6,060
    Likes Received:
    21
    Trophy Points:
    138
    Location:
    Pensacola
    Vehicle:
    1972 Sprint and 1975 Maverick
    Less than 3/4" added per side.
    Roughly 1.25" wider overall.
    Only enough to worry about if you are running wider tires/rims that you have dialed in perfectly for the stock width.

    Granada rears are same width as 64-66 Mustang or 57-59 Fords...
    They came with 8", 9", and 8.7" rears.
     
    ratio411, Jan 2, 2011
    #6
  7. ratio411

    ratio411 Member

    Joined:
    Apr 22, 2002
    Messages:
    6,060
    Likes Received:
    21
    Trophy Points:
    138
    Location:
    Pensacola
    Vehicle:
    1972 Sprint and 1975 Maverick
    Maverick is 56.5"

    Edit:
    There is NO other difference in the rears.
    They are a DIRECT bolt in.
     
    Last edited: Jan 2, 2011
    ratio411, Jan 2, 2011
    #7
  8. predfan2001

    predfan2001 David in Tn

    Joined:
    Mar 1, 2010
    Messages:
    2,345
    Likes Received:
    25
    Trophy Points:
    122
    Location:
    Clarksville Tn
    Vehicle:
    70 Mav 75 Comet 64 Comet 68 Mustang
    Are you sure it's an 8"? My 70 came with on of those junky 4 bolt rearends that had a cover. 7 1/4"???
     
    predfan2001, Jan 2, 2011
    #8
  9. rthomas771

    rthomas771 Member

    Joined:
    Jan 22, 2008
    Messages:
    8,074
    Likes Received:
    962
    Trophy Points:
    498
    Garage:
    1
    Location:
    GA
    Vehicle:
    '74 Maverick 302 5-Speed.'60 Falcon V8. '63.5 Falcon HT
    70's came with either a 7.25" or 8".
     
    rthomas771, Jan 2, 2011
    #9
  10. brainsboy

    brainsboy Member

    Joined:
    May 4, 2006
    Messages:
    774
    Likes Received:
    13
    Trophy Points:
    81
    Location:
    Tampa
    If all you want to do is switch to 5 lugs and keep the same rear end, then I believe you may be able to just have 4lugs wheel beaqrings pressed onto the 5lug axles.
     
    brainsboy, Jan 2, 2011
    #10
  11. ratio411

    ratio411 Member

    Joined:
    Apr 22, 2002
    Messages:
    6,060
    Likes Received:
    21
    Trophy Points:
    138
    Location:
    Pensacola
    Vehicle:
    1972 Sprint and 1975 Maverick
    No.
    Won't work.
     
    ratio411, Jan 2, 2011
    #11
  12. spxer

    spxer Member

    Joined:
    Aug 10, 2008
    Messages:
    132
    Likes Received:
    21
    Trophy Points:
    46
    Location:
    Raleigh NC
    a 4 lug 8 inch???? i had always thought if it was an 8 inch it would be 5 lug anyway??
     
    spxer, Jan 3, 2011
    #12
  13. darren

    darren Member

    Joined:
    Jan 5, 2009
    Messages:
    4,852
    Likes Received:
    45
    Trophy Points:
    113
    Location:
    East of Dave
    Vehicle:
    72 302 Maverick
    Nope lots of 4 lug 8" came factory. My car had one.
     
    darren, Jan 3, 2011
    #13
  14. Jamie Miles

    Jamie Miles the road warrior

    Joined:
    Feb 8, 2005
    Messages:
    12,098
    Likes Received:
    29
    Trophy Points:
    383
    Location:
    Lawrenceville, GA
    Vehicle:
    13 Mavericks
    The axles are different diameters, won't work.

    Every '71-'72 Maverick built that came with a 6 cylinder came with a 4 lug 8 inch.
     
    Jamie Miles, Jan 4, 2011
    #14
  15. maverick maniac

    maverick maniac Banned

    Joined:
    Mar 13, 2009
    Messages:
    892
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    owensboro ky
    Vehicle:
    72 sprint v/8 3 grabbers 73 comet and a 77 comet race car
    donor car or I have a set of 4 lug axles that have been redrilled to 5 lug pattern .
    pull yours out put these in and you will have 5 lug rear
     
    maverick maniac, Jan 4, 2011
    #15
Page 1 of 2

Share This Page