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  1. #1
    FEP Power Member David Claflin's Avatar
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    Default SVO control arms, changing ball joints/bushings, seems very different than steel arms

    Anyone done this or is it cost prohibitive? The Dugan wagon had SVO front control arms on it when I got it, so would like to put them back on, but not in present condition. If it's too much of a pain I'll just put SN control arms up front.
    1985 LTD LX, Mach1 brakes, 17" Mopar police car wheels. 302, T5, 4.10s
    1984 LTD station wagon, with 84GT nose, some might remember it as the old Dugan Racing station wagon.
    1986 FHP coupe, stock shortblock, TW heads, Holley SMII intake, 4.88, T5Z
    1990 Red LX, ported AFR heads, TFS-R box upper, weenie cam, 1 3/4 long accufabs, 3" exhaust, T5, 4.56

  2. #2
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    There was a guy machining the ball joints out and replacing them. It was several years ago and costly. I haven't seen anyone approach it since. Most have switched to the SN95 set up. If you want to stick to that period, you could replace them with Turbo Coupe LCAs.
    Last edited by MIKE'SVO86; 04-25-2020 at 11:15 PM.
    Bleed Ford Blue! '84 Grabber Orange SVO, '88 Saleen 1 of 4 w/Automatic, '89 Steeda, '71 DeTomaso Pantera GT5 Wide Body EFI 4.6 DOHC...soon to be a Gen3 Coyote and some Old Ford Muscle w/ BB power. 1.21 Jigawatts!!?? PETRO EXPRESS=CITGO=BOYCOTT!
    State of Illinois - Taxation without Representation!

  3. #3
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    Rare Parts does ball joint replacement.
    Fox Body/3rd Gen MCA Gold Card Judge
    84 SVO 24K miles, 85 Mclaren Capri Vert. 84 GT Turbo Vert.
    88 Mclaren Mustang Vert 20K miles, 89 Mustang LX Sport Vert,
    03 Mach 1 7900 miles, 74 Mustang II, 69 Mustang, 67 Mustang, 07 GT500,
    14 Mustang CS/GT, 15 F150 FTX Tuscany, 16 F250 Crewcab, 67 Tbird 47K miles

  4. #4
    FEP Power Member David Claflin's Avatar
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    So they have to be machined out!?!? Good call Ford..LOL! Guess I'll see if these sell on ebay and I'll use regular stamped steel on this car. Thanks!!
    1985 LTD LX, Mach1 brakes, 17" Mopar police car wheels. 302, T5, 4.10s
    1984 LTD station wagon, with 84GT nose, some might remember it as the old Dugan Racing station wagon.
    1986 FHP coupe, stock shortblock, TW heads, Holley SMII intake, 4.88, T5Z
    1990 Red LX, ported AFR heads, TFS-R box upper, weenie cam, 1 3/4 long accufabs, 3" exhaust, T5, 4.56

  5. #5

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    Does your wagon have an SVO k-member and swaybar too? Odd that they would just throw on only the control arms.
    Black 1985 GT: 408w, in the 6's in the 1/8 mile
    Bimini Blue 1988 LX 5.0 Coupe 5-speed, Hellion turbo, zero options
    Grabber Yellow 1973 Mustang Mach 1: 351c, toploader
    Black 2012 5.0 GT, 6-speed, Brembo brakes, 3.73's
    Wimbledon White 1966 F-100 Shortbed Styleside, 390, Tremec 3550, FiTech EFI

  6. #6
    FEP Power Member David Claflin's Avatar
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    Quote Originally Posted by Zap's 85 GT View Post
    Does your wagon have an SVO k-member and swaybar too? Odd that they would just throw on only the control arms.
    I don't know how to tell the difference, what's in there looks like a run of the mill K-member. I've got an 85GT K-member to put in it, it's been reinforced and powder coated white.
    1985 LTD LX, Mach1 brakes, 17" Mopar police car wheels. 302, T5, 4.10s
    1984 LTD station wagon, with 84GT nose, some might remember it as the old Dugan Racing station wagon.
    1986 FHP coupe, stock shortblock, TW heads, Holley SMII intake, 4.88, T5Z
    1990 Red LX, ported AFR heads, TFS-R box upper, weenie cam, 1 3/4 long accufabs, 3" exhaust, T5, 4.56

  7. #7
    FEP Senior Member
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    Are the ball joints bad on the SVO arms? The wear indicators are flush on the underside of the ball joint? I'd install SN95 LCAs and call it a day.
    Bleed Ford Blue! '84 Grabber Orange SVO, '88 Saleen 1 of 4 w/Automatic, '89 Steeda, '71 DeTomaso Pantera GT5 Wide Body EFI 4.6 DOHC...soon to be a Gen3 Coyote and some Old Ford Muscle w/ BB power. 1.21 Jigawatts!!?? PETRO EXPRESS=CITGO=BOYCOTT!
    State of Illinois - Taxation without Representation!

  8. #8

    Default

    Found this on another site.

    '79-'88 Mustang K-member front A-arm bolt center to center - 22.75"
    '89-'93 Mustang K-member front A-arm bolt center to center - 23.75"
    Mustang SVO K-member front A-arm bolt center to center - 23.00"


    '79-'88 Mustang K-member rear A-arm bolt center to center - 30.125"
    '89-'93 Mustang K-member rear A-arm bolt center to center - 31.125"
    Mustang SVO K-member rear A-arm bolt center to center - 29.5"

    '79-'93 K-member angle of A-arm off centerline of car - 16.5 deg.
    Mustang SVO angle of A-arm off centerline of car - 14.5deg.

    '79-'88 K-member overall width from ball joint to ball joint - 51.37"
    '89-'93 K-member overall width from ball joint to ball joint - 52.37"
    SVO K-member overall width from ball joint to ball joint - 53.36"

    Stock Mustang A-arms '79-'93 - 13.00" long
    Mustang SVO A-arms - 14.00" long
    1987-1988 Thunderbird A-arms - 13.75" long.

    The SVO used a special K-member to mount the '83-'84 Lincoln Continental A-arms and brakes. The '87-'93 Mustang uses a 4 lug version of the same rotor but a revised spindle design so it can work on stock Mustang ball joints. Thats why I am using a 83-84 Lincoln Continental 5 lug rotor to convert the front to 5 lug.

    The reason for using this setup would be

    1) Using the longer A-arms reduces the effect of the bad things that happen when the Mustang suspension cycles because it has no upper A-arm.

    2) Except for the Thunderbird A-arm, which uses the stock Mustang A-arm bushings and ball joint, all the parts are stock Mustang.

    3) SVO parts are becoming hard to find in good shape. Also my research says that when the stock SVO A-arm bushings wear out the only replacement is a aluminum bushing from Global West.
    Black 1985 GT: 408w, in the 6's in the 1/8 mile
    Bimini Blue 1988 LX 5.0 Coupe 5-speed, Hellion turbo, zero options
    Grabber Yellow 1973 Mustang Mach 1: 351c, toploader
    Black 2012 5.0 GT, 6-speed, Brembo brakes, 3.73's
    Wimbledon White 1966 F-100 Shortbed Styleside, 390, Tremec 3550, FiTech EFI

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